Author: Liu Ping
Publisher:
ISBN: 9781649976444
Category :
Languages : en
Pages : 0

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Author: G. Pattenden
Publisher: Elsevier
ISBN: 008091246X
Category : Science
Languages : en
Pages : 1209

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Volume 3 covers carbon-to-carbon single bond forming reactions involving sp3, sp2 and sp carbon centers, but only those which do not involve additions to C-X &pgr;-bonds. The volume first compares and contrasts the alkylation reactions of all types of sp3 carbon nucleophiles and also covers vinyl and alkynyl carbanions. Following on from Volume 2, a separate section covers Friedel-Crafts alkylation reactions, which is complemented by discussions of polyene cyclizations and electrophilic transannular cyclizations in synthesis. Coupling reactions leading to &agr;-bond formation, and involving all types of combinations ofsp3, sp2 and sp carbon centers are next covered, including those reactions based on pinacol, acyloin and phenol oxidative coupling reactions, and also the Kolbe reaction. Rearrangement reactions, leading to carbon-to-carbon &agr;-bond formation, are often used in a clever manner in synthesis. The volume includes all those rearrangement reactions based on intermediate carbonium ions and carbanions, and also includes the benzil-benzilic acid and the Wolff rearrangements. The volume closes with coverage of carbonylation reactions, and the use of carbene insertion reactions into the C-H bond in synthesis.

Author: Ping Liu
Publisher: Scientific Research Publishing, Inc. USA
ISBN: 1649976453
Category : Antiques & Collectibles
Languages : en
Pages : 268

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The construction of C-X (X = C, N, S) bonds is an important research content in the field of organic synthesis and drug preparation. Focusing on the green construction of the core skeleton of functional fine chemicals, the team has carried out research on green synthesis and catalytic reactions of fine chemicals, realized the effective synthesis of high value-added fine chemicals, and obtained a series of new systems of transition metal palladium and copper-catalyzed halogenated aromatic hydrocarbons involved in C-C and C-N coupling reactions; realized the efficient preparation of biphenyl, arylamine and aryl thioether compounds using water as solvent. Aiming at atomic economy, we realized the new method of direct C-H functionalization of arenes to construct C-C and C-S bond formation, as well as the construction of structurally complex functional molecular skeletons through one-pot multi-step reactions, laying a solid foundation for the application of fine organic synthesis technology in the fields of pharmaceutical intermediates, agrochemicals and optoelectronic materials, forming a distinctive research direction of fine chemical synthesis technology and it has formed a distinctive research direction of fine chemical synthesis technology and a stable R&D team, and improved the technical level of preparation of high value-added fine chemicals. He has published a total of 30 academic papers, including 27 SCI papers.

Author: Robert L. Augustine
Publisher: CRC Press
ISBN: 9780824767877
Category : Science
Languages : en
Pages : 480

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Author: Jeffrey Chang
Publisher:
ISBN:
Category :
Languages : en
Pages : 318

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Author: Goutam Brahmachari
Publisher: Elsevier
ISBN: 0128011386
Category : Science
Languages : en
Pages : 388

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Filling a gap in the scientific literature, Room Temperature Organic Synthesis is unique in its authoritative, thorough, and applied coverage of a wide variety of "green" organic synthetic methodologies. The book describes practical, feasible protocols for room temperature reactions to produce carbon-carbon and carbon-heteroatom bond formations including aliphatic, aromatic, alicyclic, heterocycles, and more. Consistently organized for easy access, each selected reaction is discussed in a very compact and structured manner including: reaction type, reaction condition, reaction strategy, catalyst, keywords, general reaction scheme, mechanism (in selected cases), representative entries, experimental procedure, characterization data of representative entries, and references. This book will be a valuable resource for synthetic organic, natural products, medicinal, and biochemists as well as those working in the pharmaceutical and agrochemical industry. - Includes more than 300 protocols for a green approach to organic synthesis - Provides specific detail about experimental conditions - Increases efficiency in the laboratory by eliminating time-consuming literature searches

Author: Robert L. Augustine
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Author: National Research Council
Publisher: National Academies Press
ISBN: 030910484X
Category : Science
Languages : en
Pages : 116

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The search for life in the solar system and beyond has to date been governed by a model based on what we know about life on Earth (terran life). Most of NASA's mission planning is focused on locations where liquid water is possible and emphasizes searches for structures that resemble cells in terran organisms. It is possible, however, that life exists that is based on chemical reactions that do not involve carbon compounds, that occurs in solvents other than water, or that involves oxidation-reduction reactions without oxygen gas. To assist NASA incorporate this possibility in its efforts to search for life, the NRC was asked to carry out a study to evaluate whether nonstandard biochemistry might support life in solar system and conceivable extrasolar environments, and to define areas to guide research in this area. This book presents an exploration of a limited set of hypothetical chemistries of life, a review of current knowledge concerning key questions or hypotheses about nonterran life, and suggestions for future research.

Author: Shashank Shekhar
Publisher:
ISBN:
Category :
Languages : en
Pages : 666

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Author: William Michael Dean
Publisher:
ISBN:
Category :
Languages : en
Pages :

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