The #1 social media platform for MCAT advice. The MCAT (Medical College Admission Test) is offered by the AAMC and is a required exam for admission to medical schools in the USA and Canada. /r/MCAT is a place for MCAT practice, questions, discussion, advice, social networking, news, study tips and more. Part 1: Introduction to building a great MCAT study schedule. You’ve probably heard stories about premed students who went to well-respected colleges, had extensive clinical and volunteer experiences, worked in the same lab for multiple years, and achieved a 3.9 GPA but were still rejected from every medical school that they applied …A novel amino alcohol-based Ir bifunctional complex acts as an efficient catalyst for oxidative lactonization of 1,4- or 1,5-diols with a substrate-to-catalyst molar …Cu/nitroxyl catalysts have been identified that promote highly efficient and selective aerobic oxidative lactonization of diols under mild reaction conditions using ambient air as the oxidant. The chemo- and regioselectivity of the reaction may be tuned by changing the identity of the nitroxyl cocatalyst. A Cu/ABNO catalyst system (ABNO = 9-azabicyclo[3.3.1]nonan-N-oxyl) shows excellent ...The MCAT is the most brutal aspect of the medical school admissions process, but you can crack it with a little help. Learn about the MCAT. Advertisement If you want to be a doctor...UWorld is a leading online platform for exam preparation and assessment. Login to access high-quality questions, explanations, and feedback for various tests, such as NCLEX, SAT, ACT, MCAT, USMLE, and more.Download Citation | Oxidative lactonization of diethylene glycol to high-value-added product 1,4-dioxan-2-one promoted by a highly efficacious and selective catalyst ZnO-ZnCr2O4 | For the first ...Typically, GVL is obtained by lactonization of 4-hydroxypentanoic acid or alkyl 4-hydroxypentanoates, which is produced through hydrogenation of the carbonyl group upon levulinic acid or its esters. Hence, the catalytic system must have both hydrogenation and cyclization active sites.Lactonization is the most widely used method for the formation of lactones, and there are numerous examples under this category for the construction of δ-lactones from the corresponding δ-hydroxy acid derivatives. For example, in 1962, Pappo and Jung reported the synthesis of δ-lactones from cyclohexenones via δ-hydroxy acid (Scheme 1).With US futures trading higher this morning on Tuesday, some of the stocks that may grab investor focus today are as follows: Wall Street expects ... With US futures trading higher...The #1 social media platform for MCAT advice. The MCAT (Medical College Admission Test) is offered by the AAMC and is a required exam for admission to medical schools in the USA and Canada. /r/MCAT is a place for MCAT practice, questions, discussion, advice, social networking, news, study tips and more.Need a design consultant in Zagreb? Read reviews & compare projects by leading design agencies. Find a company today! Development Most Popular Emerging Tech Development Languages Q...If you’re studying for the MCAT, it’s essential to create an MCAT memorization list to retain essential facts and concepts with ease.Keep reading to learn how! If acing the MCAT is your goal, you're well aware of the importance of memory. Beyond memorizing facts, the exam demands a deep understanding of complex … The #1 social media platform for MCAT advice. The MCAT (Medical College Admission Test) is offered by the AAMC and is a required exam for admission to medical schools in the USA and Canada. /r/MCAT is a place for MCAT practice, questions, discussion, advice, social networking, news, study tips and more. A metal-free tandem Friedel-Crafts/lactonization reaction to 3,3-diaryl or 3-alkyl-3-aryl benzofuranones is catalyzed by HClO 4. The reaction of various tertiary α-hydroxy acid esters with substituted phenols affords the desired products in rich diversity.Lactonization Which of the following compounds is most likely the intermediate product formed in Step 4 of Figure 2 if four equivalents of base are used? When four equivalents of base (-OH) are used, one -OH will saponify the lactone to form the secondary alcohol and carboxylate, a second -OH will hydrolyze the carbamate, with the remaining -OH ...The MCAT exam is offered multiple times in 2024 from January and March through September at hundreds of test sites in the United States, Canada, and around the world. If you have a disability or medical condition that you believe requires an adjustment to standard testing conditions, we encourage you to apply for accommodated testing.As seen in Fig. 2b, the first intramolecular lactonization of F to G is exothermic by 9.4 kcal/mol, and a subsequent second lactonization to bis-lactone H releases an additional 2.8 kcal/mol ... A. reduction of the ketone and lactonization of the gamma- hydroxyester. B. hydrolysis of one ester and formation of an acetal from the ketoacid. C. reduction of one ester and formation of an acetal from the gamma- hydroxyketone. D. reduction of one ester and the ketone followed by dehydration to a ketoether. MCAT Ochem: Reactions and Definitions. Flashcards. Learn. Test. Match. Flashcards. Learn. Test. Match. Created by. akulawiec. Terms in this set (38) Fischer esterification. The acid-catalyzed reaction of a carboxylic acid with an alcohol to form an ester. Base-catalyzed aldol condensation ...Scores are released by 5:00 p.m. ET on the scheduled score release date. All scheduling deadlines are at 11:59 p.m. local test center time on the day of the deadline. Download the 2024 MCAT calendar, scheduling deadlines, and score release dates for U.S. testing centers. The 10 Day Deadline is the last date to schedule, reschedule, or cancel a ...This resource contains a complete description of the competencies you are responsible for knowing on the MCAT ® exam. It also lists and discusses the exam’s conceptual framework, organized around foundational concepts, content categories, and scientific inquiry and reasoning skills. The outline is also available as a course in the MCAT ...The macrolactonization of thioesters is the biosynthetic pathway for the formation of macrolides. It is therefore not surprising that this strategy was also investigated for the laboratory synthesis of macrolactones. The most prominent reaction involving a thioester is the “double activation” method described in 1974 by Corey and Nicolaou. 51 The …As seen in Fig. 2b, the first intramolecular lactonization of F to G is exothermic by 9.4 kcal/mol, and a subsequent second lactonization to bis-lactone H releases an additional 2.8 kcal/mol ...MCAT Official Prep (AAMC) Official Guide B/B Section Passage 1 Question 4. Practice Exam 2 B/B Section Question 45. Practice Exam 3 B/B Section Passage 6 Question 33. Sample Test B/B Section Question 45 Key Points • Fermentation is the breakdown of glucose in the absence of oxygen.Oxidative lactonization of diethylene glycol to high-value-added product 1,4-dioxan-2-one promoted by a highly efficacious and selective catalyst ZnO-ZnCr2O4. Menglu Cai, Xiaozhong Wang, Yingqi Chen, Liyan Dai. Article 110643. View PDF.A novel palladium-catalyzed ring opening carbonylative lactonization of readily available hydroxycyclopropanols was developed to efficiently synthesize tetrahydrofuran (THF) or tetrahydropyran (THP)-fused bicyclic γ-lactones, two privileged scaffolds often found in natural products. The reaction features mild reaction conditions, …A. reduction of the ketone and lactonization of the gamma -hydroxyester. B. hydrolysis of one ester and formation of an acetal from the ketoacid. C. reduction of one ester and formation of an acetal from the gamma -hydroxyketone. D. reduction of one ester and the ketone followed by dehydration to a ketoether.As seen in Fig. 2b, the first intramolecular lactonization of F to G is exothermic by 9.4 kcal/mol, and a subsequent second lactonization to bis-lactone H releases an additional 2.8 kcal/mol ...Download Citation | Oxidative lactonization of diethylene glycol to high-value-added product 1,4-dioxan-2-one promoted by a highly efficacious and selective catalyst ZnO-ZnCr2O4 | For the first ...Specialized Cell – Nerve Cell (BIO) Content Category 4D: How light and sound interact with matter. Sound (PHY) Light, Electromagnetic Radiation (PHY) Molecular Structure and Absorption Spectra (OC) Geometrical Optics (PHY) Content Category 4E: Atoms, nuclear decay, electronic structure, and atomic chemical behavior.This collection is being developed for the revised MCAT® exam that will first be administered in April 2015. The collection contains more than 1000 videos and 2800 practice questions. Content will be added to the collection through 2015. All content in this collection has been created under the direction of the Khan Academy and has been …Because lactones are ubiquitous in organic chemistry and monolactonization of dicarboxylic acids would leave the remaining carboxyl groups as versatile handles for further synthetic elaborations (), we aimed to develop site-selective intramolecular C–O bond-formation reactions of dicarboxylic acids through …The first example of enzyme-catalyzed dynamic covalent kinetic resolution of hemithioketals was demonstrated. This method involved the reversible nucleophilic addition of methyl thioglycolate to activated ketones in conjugation with lipase mediated lactonization, generating 1,3-oxathiolan-5-ones in high yields as well as high …An efficient oxidative lactonization of 1,4-diols in acetone is accomplished by the well-defined ruthenium catalyst, whose bifunctional nature underlies the high efficiency as well as unique chemo- and regioselectivity of the reaction which provides a rapid access to γ-butyrolactones including flavor lactones hinokinin, and muricatacin.MCAT Bootcamp 30 Lessons. You will complete MCAT Bootcamp during the final month before you take the MCAT. This module requires hard work and diligence as you do a quick yet thorough review of everything you learned during the Content Modules while taking two full length practice exams per week leading up to your test date, by which time, you’ll …Scores are released by 5:00 p.m. ET on the scheduled score release date. All scheduling deadlines are at 11:59 p.m. local test center time on the day of the deadline. Download the 2024 MCAT calendar, scheduling deadlines, and score release dates for U.S. testing centers. The 10 Day Deadline is the last date to schedule, reschedule, or cancel a ...As seen in Fig. 2b, the first intramolecular lactonization of F to G is exothermic by 9.4 kcal/mol, and a subsequent second lactonization to bis-lactone H releases an additional 2.8 kcal/mol ...A highly efficient, mild, and simple protocol is presented for the tandem OsO 4 -mediated oxidative cleavage/oxidative lactonization of alkenols to lactones. The protocol couples the OsO 4 -catalyzed oxidative cleavage of olefins with Oxone as the co-oxidant with the direct oxidation of aldehydes in alcoholic solvents to their corresponding esters.Protonation allows the alcohol reactant to add to the ester carbonyl. Proton transfer to the ester's alkoxy group increases it ability to act as a leaving group. Reforming the C=O carbonyl bond removes the leaving group and subsequent deprotonation by water forms the ester product. 1) Protonation of the carbonyl.Why convert a mutual fund to an ETF? Follow the money to find out, writes ETF expert Mark Abssy, who says making the straight switch from mutual funds to ETFs can be material to an...Get ratings and reviews for the top 12 gutter companies in Daphne, AL. Helping you find the best gutter companies for the job. Expert Advice On Improving Your Home All Projects Fea...In the total stereo-controlled synthesis of natural prostaglandins (PGs) and their structural analogs, a vast class of compounds and drugs, known as the lactones, are encountered in a few key steps to build the final molecule, as: δ-lactones, γ-lactones, and 1,9-, 1,11-, and 1,15-macrolactones. After the synthesis of 1,9-PGF2α and 1,15-PGF2α …Here we report two distinct catalysts for site-selective β- and γ-C─H activation of dicarboxylic acids using quinoline-pyridone ligands, leading to three modes of lactonization for the synthesis of γ- and δ-lactones from various dicarboxylic acids (Fig. 1C).Symmetrical dicarboxylic acids such as adipic acid and pimelic acid could be …This question is about the Bank of the West Secured Credit Card @john_miller • 03/10/23 This answer was first published on 03/10/23. For the most current information about a financ...Learn Lactones, Lactams and Cyclization Reactions with free step-by-step video explanations and practice problems by experienced tutors.The following are conditions that could qualify you for MCAT accommodations: Pregnancy or if you are currently nursing. Temporary medical conditions, such as a broken limb. Learning disabilities, such as ADHD. Psychiatric conditions, such as anxiety or depression. Sensory conditions, such as if your vision or hearing is impaired.The Insider Trading Activity of Knapp Alicia R on Markets Insider. Indices Commodities Currencies StocksTo a solution of the seco-acid (0.1 mmol) and PPh 3 (0.4 mmol) in PhMe (70 mL) under N 2 at -10 °C was added a solution of DIAD (0.4 mmol) in PhMe (30 mL) via syringe pump over 1 h. The resulting …Lactonization is the most widely used method for the formation of lactones, and there are numerous examples under this category for the construction of δ-lactones from the corresponding δ-hydroxy acid derivatives. For example, in 1962, Pappo and Jung reported the synthesis of δ-lactones from cyclohexenones via δ-hydroxy acid (Scheme 1).Oct 26, 2022 · Reaction Overview: Alkene epoxidation is a reaction in which the pi bond of an alkene breaks and both of the former sp2 carbon atoms bind to the same oxygen atom, forming a 3-membered ring known as an epoxide. 2. Properties of Lactones. Generally, lactones with a simple structure are used as monomers, precursors of biodegradable polymer materials. Lactones with a more complex, polycyclic structure (macrolactones) are used in medicine, as anti-inflammatory or anti-malarial compounds as well as bioactive compounds against various diseases, …The lactone function is characterized by the presence of an ester in a cycle. A lactone is thus an oxygenated heterocycle resulting from the cyclization (or lactonization) of hydroxy acids. γ-Lactones and δ-lactones, also corresponding to 4- and 5-olides, represent the two structures most frequently identified in the composition of aroma compounds.Storage. Memory storage allows us to hold onto information for a very long duration of time—even a lifetime. Memories are not stored as exact replicas of experiences; instead, they are modified and reconstructed during retrieval and recall. Memory storage is achieved through the process of encoding, through either short- or long-term memory ...Cai, M., Wang, X., Chen, Y., & Dai, L. (2020). Oxidative lactonization of diethylene glycol to high-value-added product 1,4-dioxan-2-one promoted by a highly ...Advertisement Besides your college transcript, most medical schools require you to take the MCAT and supply your score with your application. The MCAT (Medical College Admission Te...This article is cited by 32 publications. Kaii Nakayama, Naoya Maeta, Genki Horiguchi, Hidehiro Kamiya, Yohei Okada. Radical Cation Diels–Alder Reactions by TiO2 Photocatalysis.Because lactones are ubiquitous in organic chemistry and monolactonization of dicarboxylic acids would leave the remaining carboxyl groups as versatile handles for further synthetic elaborations (), we aimed to develop site-selective intramolecular C–O bond-formation reactions of dicarboxylic acids through …MCAT Mnemonics: Ultimate Guide By 515+ Scorers. Studying for the MCAT can be challenging. With many scientific terms and equations to master, you cannot help but feel overwhelmed. Thankfully, you can employ many techniques and strategies to make preparing for the MCAT a little less challenging . One such technique is the use of …Instead, the MCAT exam is scaled and equated so that scores have the same meaning, no matter when you test. Learn more about how the exam is scored. Learn about how to interpret scores for exams administered from 1991 through January 2015. Learn more about MCAT scores, including release dates and how to access your score.Jul 15, 2020 · a) Basic principles. b) Molecular cloning. c) Bacterial transformation. Part 7: Centrifugation and Chromatography. This article is cited by 426 publications. María F. García Manzano, Mariana B. Joray, Jerónimo Laiolo, Sara M. Palacios, María C. Carpinella. Cytotoxic Activity of Germacrane-Type Sesquiterpene Lactones from Dimerostemma aspilioides.Kaposi sarcoma (KS) is a cancerous tumor of the connective tissue. Kaposi sarcoma (KS) is a cancerous tumor of the connective tissue. KS is the result of infection with a gamma her...The highly strained and reactive β-lactone products are versatile linchpins for the mono-selective installation of diverse alkyl, alkenyl, aryl, alkynyl, fluoro, hydroxyl and amino groups at the β...Jan 1, 2020 · This was the first report of oxidative lactonization of diethyl glycol (DEG) to 1,4-dioxan-2-one (PDO) with a mixed metal oxide under mild conditions with H 2 O 2 as oxidant. Despite the target reaction is challenging, the highest conversion of diethyl glycol (DEG) could reach 81.95% and the selectivity of 1,4-dioxan-2-one (PDO) was 96.22% ... The #1 social media platform for MCAT advice. The MCAT (Medical College Admission Test) is offered by the AAMC and is a required exam for admission to medical schools in the USA and Canada. /r/MCAT is a place for MCAT practice, questions, discussion, advice, social networking, news, study tips and more.Dealing with low water pressure in your home? This guide explains the potential underlying problems and five simple, effective solutions for fixing them yourself. Expert Advice On ...The accommodations webpages contain information you need to understand the application process and how to schedule your exam with accommodations. Each page of our site is geared towards a specific component of the accommodations request process. We recommend that you familiarize yourself with the entire process before applying.The #1 social media platform for MCAT advice. The MCAT (Medical College Admission Test) is offered by the AAMC and is a required exam for admission to medical schools in the USA and Canada. /r/MCAT is a place for MCAT practice, questions, discussion, advice, social networking, news, study tips and more.Indices Commodities Currencies StocksThe Medical College Admission Test® (MCAT®) is a standardized, multiple-choice, computer-based test that has been a part of the medical school admissions process for more than 90 years. Each year, more than 85,000 students sit for the exam. All medical schools in the United States and many in Canada require MCAT scores for regular admission ...The #1 social media platform for MCAT advice. The MCAT (Medical College Admission Test) is offered by the AAMC and is a required exam for admission to medical schools in the USA and Canada. /r/MCAT is a place for MCAT practice, questions, discussion, advice, social networking, news, study tips and more.a) Basic principles. b) Types. a. Native-PAGE. b. SDS-PAGE. c. Reducing SDS-PAGE. d. Isoelectric focusing. Part 3: Blotting methods. a) Basic principles. b) Types. a. Western blot. b. Southern blot. c. Northern blot. Part 4: DNA-based techniques. a) DNA sequencing via Sanger method. b) Polymerase chain reaction. a. RT-qPCR. b. cDNA library.The current palladium-catalyzed medium-sized lactonization is efficient, featuring broad substrate scope, good functional group compatibility, and benefitted by …Coming up for air: Highly efficient aerobic lactonization can be carried out by a biomimetic oxidation system based on coupled redox catalysts (ruthenium catalyst and electron transfer mediators).This system leads to a low-energy electron transfer from diol to molecular oxygen. Various diols were aerobically oxidized to the corresponding …Scores are released by 5:00 p.m. ET on the scheduled score release date. All scheduling deadlines are at 11:59 p.m. local test center time on the day of the deadline. Download the 2024 MCAT calendar, scheduling deadlines, and score release dates for U.S. testing centers. The 10 Day Deadline is the last date to schedule, reschedule, or cancel a ...Exam. Preparing for the MCAT ® exam takes time and dedication. Balancing your preparation with an already busy schedule can be a challenge. The AAMC has resources and practice products to help you no matter where you are in the preparation process. Learn more about the new MCAT ® Prep enhancements for the upcoming testing year.Because lactones are ubiquitous in organic chemistry and monolactonization of dicarboxylic acids would leave the remaining carboxyl groups as …Iodolactonization (or, more generally, halolactonization) is an organic reaction that forms a ring (the lactone) by the addition of an oxygen and iodine across a carbon-carbon double bond.It is an intramolecular variant of the halohydrin synthesis reaction. The reaction was first reported by M. J. Bougalt in 1904 and has since become one of the most effective …The Medical College Admission Test (MCAT) is a standardized medical admission test that is a key prerequisite for students applying to medical school. The MCAT specifically focuses on a student’s skills and knowledge, including problem solving, critical thinking and comprehension of a range of scientific concepts. Because of the importance …Read and download Oxidative lactonization of diethylene glycol to high-value-added product 1,4-dioxan-2-one promoted by a highly efficacious and selective catalyst ZnO-ZnCr2O4 by Menglu Cai, Xiaozhong Wang, Yingqi Chen, Liyan Dai on OA.mg ... DOI: 10.1016/j.mcat.2019.110643. OpenAccess: Closed. This work is not Open Acccess. We …Learn Lactones, Lactams and Cyclization Reactions with free step-by-step video explanations and practice problems by experienced tutors. Specialized Cell – Nerve Cell (BIO) Content Category 4D: How light and sound interact with matter. Sound (PHY) Light, Electromagnetic Radiation (PHY) Molecular Structure and Absorption Spectra (OC) Geometrical Optics (PHY) Content Category 4E: Atoms, nuclear decay, electronic structure, and atomic chemical behavior. An electrochemical cascade sulfonylation and lactonization process of alkenes and a most widely used arylsulfonylation reagent─sulfonyl hydrazines─was developed for the first time. This electrochemical sulfonyl lactonization avoided the use of toxic metal catalysts or stoichiometric oxidants and was carried out under mild …If you’re studying for the MCAT, it’s essential to create an MCAT memorization list to retain essential facts and concepts with ease.Keep reading to learn how! If acing the MCAT is your goal, you're well aware of the importance of memory. Beyond memorizing facts, the exam demands a deep understanding of complex …
Because lactones are ubiquitous in organic chemistry and monolactonization of dicarboxylic acids would leave the remaining carboxyl groups as versatile handles for further synthetic elaborations (), we aimed to develop site-selective intramolecular C–O bond-formation reactions of dicarboxylic acids through …. Elijah chavez
Dai's group have developed a novel Pd-catalyzed hydroxy cyclopropanol ring opening carbonylative lactonization to synthesize THF/THP-fused bicyclic γ-lactones [1]. Although there are many different methods to synthesize 5,5-fused bicyclic skeleton [2] , more atom- and step-economical approach is worth to be expected.AAMC FL4 CP [Web] Exam 4 C/P Solutions: Passage 1. 1) First thing we want to do to answer this question is revisit the part of the passage that talks about limestone. The author tells us in Step 1, “The chemist placed a sample of limestone, CaCO 3 ( s ), into a sealed chamber and then heated the limestone to 1200 K to generate CO 2 ( g) and ...Lactonization Which of the following compounds is most likely the intermediate product formed in Step 4 of Figure 2 if four equivalents of base are used? When four equivalents of base (-OH) are used, one -OH will saponify the lactone to form the secondary alcohol and carboxylate, a second -OH will hydrolyze the carbamate, with the remaining -OH ...MCAT(Medical College Admission Test), is an entrance exam required for medical school admissions.It is a computer-based, multiple-choice exam that is necessary for admission to medical schools in the United States and Canada. The Association of American Medical Colleges (AAMC) created and administers MCAT examination to offer …Osmotic fragility is a blood test to detect whether red blood cells are more likely to break down. Osmotic fragility is a blood test to detect whether red blood cells are more like...Abstract. Cytochrome P450 enzymes are known to catalyse bimodal oxidation of aliphatic acids via radical intermediates, which partition between pathways of hydroxylation and desaturation 1, 2 ...Specialized Cell – Nerve Cell (BIO) Content Category 4D: How light and sound interact with matter. Sound (PHY) Light, Electromagnetic Radiation (PHY) Molecular Structure and Absorption Spectra (OC) Geometrical Optics (PHY) Content Category 4E: Atoms, nuclear decay, electronic structure, and atomic chemical behavior.MCAT(Medical College Admission Test), is an entrance exam required for medical school admissions.It is a computer-based, multiple-choice exam that is necessary for admission to medical schools in the United States and Canada. The Association of American Medical Colleges (AAMC) created and administers MCAT examination to offer …Catalyst-controlled site-selective methylene C–H lactonization of dicarboxylic acids. Hau Sun Sam Chan Jimin Yang jin-quan yu. Chemistry. Science. 2022. Catalyst-controlled site-selective activation of β- and γ-methylene carbon-hydrogen (C–H) bonds of free carboxylic acids is a long-standing challenge. Here we show that, with a pair of ...14 3-hour classes with an MCAT expert near you. Plus upgrade available to add: Tutoring, CARS, & PREview ®. Starting at $267/mo or 0% APR with Affirm. Curated content so you never waste a minute of prep. 10, 20, 30, or 40 hours of private, 1-on-1 tutoring. Premium Tutoring with a 520+ instructor available.Watch this video for helpful tips on how to prevent hole saws from dulling, overheating, and binding when drilling large diameter holes. Expert Advice On Improving Your Home Videos...A novel amino alcohol-based Ir bifunctional complex acts as an efficient catalyst for oxidative lactonization of 1,4- or 1,5-diols with a substrate-to-catalyst molar … Shiina macrolactonization (or Shiina lactonization) is an organic chemical reaction that synthesizes cyclic compounds by using aromatic carboxylic acid anhydrides as dehydration condensation agents. In 1994, Prof. Isamu Shiina ( Tokyo University of Science, Japan) reported an acidic cyclization method using Lewis acid catalyst, [1] [2] and, in ... A Diastereoselective, Nucleophile-Promoted Aldol-Lactonization of Ketoacids Leading to Bicyclic-β-Lactones. The Journal of Organic Chemistry 2012 , 77 (5) , 2496-2500.A molecule that contains a carboxyl group and a hydroxyl group can undergo an intramolecular esterification forming a cyclic ester called a lactone. A molecule with a carboxyl group and an amine can undergo intramolecular aminolysis to form a cyclic amide called a lactam.Herein, we report the direct selective C-H lactonization of fatty acids (C5-C16), catalyzed by manganese (II) complexes bearing bis-amino-bis-pyridine ligands. The catalyst system uses the environmentally benign hydrogen peroxide as oxidant and exhibits high efficiency (100-200 TON), providing under optimized conditions γ-lactones in 60-90% ... The oxidative lactonization of 1,4-, 1,5-, and 1,6-diols using horse liver alcohol dehydrogenase (HLADH) is reported. Molecular oxygen was used as terminal electron acceptor by utilization of the laccase-mediator concept to regenerate the oxidized nicotinamide cofactor and producing water as sole byproduct. Study with Quizlet and memorize flashcards containing terms like Fischer esterification, Base-catalyzed aldol condensation, Decarboxylation and more..
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