Download or read book The Chemistry of Ketenes Allenes and Related Compounds Ketene O O acetals written by Saul Patai and published by . This book was released on 1980 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Chemistry of Ketenes Allenes and Related Compounds written by and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Chemistry of Ketenes Allenes and Related Compounds Part 1 written by Saul E Patai and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Chemistry of Ketenes Allenes and Related Compounds Part 2 written by Saul E Patai and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Chemistry of Ketenes Allenes and Related Compounds Theoretical methods and their application to ketenes and allenes written by Saul Patai and published by . This book was released on 1980 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cycloadditions of Ketene Acetals with Conjugated Carbonyl Compounds written by C. G. Bakker and published by . This book was released on 1983 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Chemistry of Cyclic Ketene N O acetals written by Yingquan Song and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A cyclic ketene acetal is an olefin that is substituted at one end by two electron-donating hetero atoms, like O, N, S, where these hetero atoms are connected together by a chain. Delocalization of the lone pair electrons of the two hetero atoms to the double bond makes the [beta]-carbon (the exocyclic methylene carbon) electron rich and nucleophilic. A major goal of cyclic ketene acetal chemistry is to provide functionalized cyclic ketene acetal monomers as precursors to polymers of desired properties. The cyclic ketene-N, O-acetal 3-methyl-2-methylene-oxazolidine, generated in situ from 2-methyl-2-oxazolinium iodide and triethylamine, reacted with aryl isocyanates in refluxing THF to give [alpha, alpha]-bis(N-arylamido) lactams via the iodide-catalyzed rearrangement of [beta, beta]-bis(N-arylamido) cyclic ketene-N, O-acetal intermediates. However, similar [beta, beta]-bis(N-arylamido) cyclic ketene-N, O-acetals having two methyl substituents at C-4, did not rearrange due to hindrance of the iodide attack on C-5. 3,4,4-Trimethyl-2-methylene-oxazolidine reacted with aryl chloroformates to form both mono- and di-aryloxycarbonylation adducts. The two methyl groups at C-4 hindered the alternative polymerization route. 3-Methyl-2-methylene-oxazolidine, which does not have two methyl groups at C-4, underwent cationic polymerization under identical conditions. Benzoylation of 2-methyl-2-oxazoline with benzoyl chloride gave a ring-opened N, C, O-trisbenzoylation product via O-benzoylation of the N, C-bisbenzoylated intermediate, followed by chloride attack on C-5. The N, C, O-trisbenzoylated product underwent N, O-double debenzoylation by KOH to give the cyclic ketene-N, O-acetal, 2- oxazolidin-2-ylidene-1-phenylethanone. This compound (an ambident nucleophile), upon deprotonation, reacted with benzoyl chloride to give the [beta, beta]-bisbenzoylated cyclic ketene-N, O-acetal, and reacted with phenyl chloroformate to give a novel heterocycle, [1,3]oxazine-2,4-dione. The benzoylation of 2-methyl-2-oxazine gave a similar ringopened N, C, O-trisbenzoylation product. Reactions of 2-methyl-2-oxazoline, 2,4,4-trimethyl-2-oxazoline and 2-methyl-2- thiazoline with trifluoroacetyl anhydride gave C-trifluoroacetylated cyclic ketene-N, O(S)- acetals. However, trifluoroacetylation of 2-methyl-2-oxazine gave the [beta, beta]- bistrifluoroacetylated cyclic ketene-N, O-acetal. In summary, a novel iodide-catalyzed rearrangement of [beta, beta]-bis(N-arylamido)- cyclic ketene-N, O-acetals was found. The [1,3]oxazine-2,4-dione heterocycle synthesized during this research also demonstrates the synthetic potential of cyclic ketene acetal chemistry in pharmaceutical industry. Functionalization of cyclic ketene acetals based on the chemistry developed in this work will find applications in polymer industry.
Download or read book Studies on the Synthesis and Chemistry of Sterically Hindered Acetic Acids Ketenes and Ketene Acetals written by Fintan Kelleher and published by . This book was released on 1990 with total page 257 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Preparation of Ketene Acetals and Related Compounds written by Philip Marion Walters and published by . This book was released on 1942 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book March s Advanced Organic Chemistry written by Michael B. Smith and published by John Wiley & Sons. This book was released on 2007-01-29 with total page 2379 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Sixth Edition of a classic in organic chemistry continues its tradition of excellence Now in its sixth edition, March's Advanced Organic Chemistry remains the gold standard in organic chemistry. Throughout its six editions, students and chemists from around the world have relied on it as an essential resource for planning and executing synthetic reactions. The Sixth Edition brings the text completely current with the most recent organic reactions. In addition, the references have been updated to enable readers to find the latest primary and review literature with ease. New features include: More than 25,000 references to the literature to facilitate further research Revised mechanisms, where required, that explain concepts in clear modern terms Revisions and updates to each chapter to bring them all fully up to date with the latest reactions and discoveries A revised Appendix B to facilitate correlating chapter sections with synthetic transformations
Download or read book Advanced Organic Chemistry written by Reinhard Bruckner and published by Academic Press. This book was released on 2002 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: A best-selling mechanistic organic chemistry text in Germany, this text's translation into English fills a long-existing need for a modern, thorough and accessible treatment of reaction mechanisms for students of organic chemistry at the advanced undergraduate and graduate level. Knowledge of reaction mechanisms is essential to all applied areas of organic chemistry; this text fulfills that need by presenting the right material at the right level.
Download or read book Frontier Orbitals and Organic Chemical Reactions written by Ian Fleming and published by John Wiley & Sons. This book was released on 1976-01-01 with total page 249 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides a basic introduction to frontier orbital theory with a review of its applications in organic chemistry. Assuming the reader is familiar with the concept of molecular orbital as a linear combination of atomic orbitals the book is presented in a simple style, without mathematics making it accessible to readers of all levels.
Download or read book Advanced Organic Chemistry written by Jerry March and published by Wiley-Interscience. This book was released on 1985-03-11 with total page 1346 pages. Available in PDF, EPUB and Kindle. Book excerpt: This survey of advanced chemistry covers virtually all the useful reactions--600 all told--with the scope, limitations, and mechanism of each described in detail. Extensive general sections on the mechanisms of the important reaction types, and five chapters on the structure and stereochemistry of organic compounds and reactive intermediates are included as well. Of the more than 10,000 references included, 5,000 are new in this edition.
Download or read book Part B Reactions and Synthesis written by Francis A. Carey and published by Springer. This book was released on 2013-11-27 with total page 972 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Named Organic Reactions written by Thomas Laue and published by John Wiley & Sons. This book was released on 2005-08-19 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Second edition contains consise information on 134 carefully chosen named organic reactions - the standard set of undergraduate and graduate synthetic organic chemistry courses. Each reaction is detailed with clearly drawn mechanisms, references from the primary literature, and well-written accounts covering the mechanical aspects of the reactions, and the details of side reactions and substrate limitations. For the 2nd edition the complete text has been revised and updated, and four new reactions have been added: Baylis-Hillmann Reaction, Sonogashira Reaction, Pummerer Reaction, and the Swern Oxidation und Cyclopropanation. An essential text for students preparing for exams in organic chemistry.
Download or read book The Vocabulary and Concepts of Organic Chemistry written by Milton Orchin and published by John Wiley & Sons. This book was released on 2005-07-08 with total page 904 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a basic reference providing concise, accurate definitions of the key terms and concepts of organic chemistry. Not simply a listing of organic compounds, structures, and nomenclatures, the book is organized into topical chapters in which related terms and concepts appear in close proximity to one another, giving context to the information and helping to make fine distinctions more understandable. Areas covered include: bonding, symmetry, stereochemistry, types of organic compounds, reactions, mechansims, spectroscopy, and photochemistry.
Download or read book Organic Chemistry written by Robert V. Hoffman and published by John Wiley & Sons. This book was released on 2004-11-26 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ideal for those who have previously studies organic chemistry butnot in great depth and with little exposure to organic chemistry ina formal sense. This text aims to bridge the gap betweenintroductory-level instruction and more advanced graduate-leveltexts, reviewing the basics as well as presenting the more advancedideas that are currently of importance in organic chemistry. * Provides students with the organic chemistry background requiredto succeed in advanced courses. * Practice problems included at the end of each chapter.
