Quaternary Stereocenters
Title | Quaternary Stereocenters PDF eBook |
Author | Jens Christoffers |
Publisher | John Wiley & Sons |
Pages | 359 |
Release | 2006-05-12 |
Genre | Science |
ISBN | 3527606971 |
Filling the gap in the literature, this book presents everything there is to know about this topic. By comprehensively covering the quaternary stereocenters found in a range of important and useful molecules in pharmaceutical and medicinal applications, as well as in thousands of natural products, the book provides the know-how chemists need to synthesize challenging molecules with numerous applications. A must for organic chemists in academia, the pharmaceutical industry and medicine. From the Contents: Important Natural Products Important Pharmaceuticals and Intermediates Aldol Reactions Michael Reactions and Conjugate Additions Cycloaddition Reactions Rearrangement Reactions Alkylation of Ketones and Imines Asymmetric Allylic Alkylation Asymmetric Cross Coupling and Heck Reactions Phase Transfer Catalysis Enzymatic Methods Radical Reactions
Direct construction of d3-methylated all-carbon quaternary stereocenters through carbene-catalyzed desymmetrization
Title | Direct construction of d3-methylated all-carbon quaternary stereocenters through carbene-catalyzed desymmetrization PDF eBook |
Author | Jingcheng Guo |
Publisher | OAE Publishing Inc. |
Pages | 11 |
Release | 2023-07-19 |
Genre | Science |
ISBN |
The construction of d3-methylated all-carbon quaternary stereocenters has been successfully developed via carbene-catalyzed desymmetrization of prochiral d3-methylated oxindolyl 1,3-diketones. Three new stereogenic centers were efficiently constructed with satisfactory outcomes. Diverse spiro-polycyclic molecules with a d3-methylated all-carbon quaternary stereocenter were generated in good to excellent yields with good to excellent diastereoselectivities and excellent enantioselectivities. This reaction features a broad substrate scope, good functional-group tolerance, and easy scale-up.
New and Efficient Methods for the Preparation of Quaternary Stereocenters
Title | New and Efficient Methods for the Preparation of Quaternary Stereocenters PDF eBook |
Author | Tom Mejuch |
Publisher | |
Pages | 136 |
Release | 2012 |
Genre | |
ISBN |
Various Approaches Towards the Creation of Stereodefined All-carbon Quaternary Stereocenters
Title | Various Approaches Towards the Creation of Stereodefined All-carbon Quaternary Stereocenters PDF eBook |
Author | Liat Frid |
Publisher | |
Pages | 89 |
Release | 2012 |
Genre | |
ISBN |
C-1 Building Blocks in Organic Synthesis
Title | C-1 Building Blocks in Organic Synthesis PDF eBook |
Author | Piet W. N. M. van Leeuwen |
Publisher | |
Pages | 610 |
Release | 2014-03-12 |
Genre | Alkenes |
ISBN | 9783131707710 |
This is an organic chemistry reference work, focusing on reactions that add a C-1 unit to a substrate.
Anion-Binding Catalysis
Title | Anion-Binding Catalysis PDF eBook |
Author | Olga Garcia-Mancheno |
Publisher | John Wiley & Sons |
Pages | 418 |
Release | 2022-03-21 |
Genre | Technology & Engineering |
ISBN | 3527348573 |
Explores the potential of new types of anion-binding catalysts to solve challenging synthetic problems Anion-Binding Catalysis introduces readers to the use of anion-binding processes in catalytic chemical activation, exploring how this approach can contribute to the future design of novel synthetic transformations. Featuring contributions by world-renowned scientists in the field, this authoritative volume describes the structure, properties, and catalytic applications of anions as well as synthetic applications and practical analytical methods. In-depth chapters are organized by type of catalyst rather than reaction type, providing readers with an accessible overview of the existing classes of effective catalysts. The authors discuss the use of halogens as counteranions, the combination of (thio)urea and squaramide-based anion-binding with other types of organocatalysis, anion-binding catalysis by pnictogen and tetrel bonding, nucleophilic co-catalysis, anion-binding catalysis by pnictogen and tetrel bonding, and more. Helping readers appreciate and evaluate the potential of anion-binding catalysis, this timely book: Illustrates the historical development, activation mode, and importance of anion-binding in chemical catalysis Explains the analytic methods used to determine the anion-binding affinity of the catalysts Describes catalytic and synthetic applications of common NH- and OH-based hydrogen-donor catalysts as well as C-H triazole/triazolium catalysts Covers amino-catalysis involving enamine, dienamine, or iminium activation approaches Discusses new trends in the field of anion-binding catalysis, such as the combination of anion-binding with other types of catalysis Presenting the current state of the field as well as the synthetic potential of anion-binding catalysis in future, Anion-Binding Catalysis is essential reading for researchers in both academia and industry involved in organic synthesis, homogeneous catalysis, and pharmaceutical chemistry.
Progress in Enantioselective Cu(I)-catalyzed Formation of Stereogenic Centers
Title | Progress in Enantioselective Cu(I)-catalyzed Formation of Stereogenic Centers PDF eBook |
Author | Syuzanna R. Harutyunyan |
Publisher | Springer |
Pages | 229 |
Release | 2016-04-30 |
Genre | Science |
ISBN | 331933414X |
The series Topics in Organometallic Chemistry presents critical overviews of research results in organometallic chemistry. As our understanding of organometallic structure, properties and mechanisms increases, new ways are opened for the design of organometallic compounds and reactions tailored to the needs of such diverse areas as organic synthesis, medical research, biology and materials science. Thus the scope of coverage includes a broad range of topics of pure and applied organometallic chemistry, where new breakthroughs are being achieved that are of significance to a larger scientific audience. The individual volumes of Topics in Organometallic Chemistry are thematic. Review articles are generally invited by the volume editors. All chapters from Topics in Organometallic Chemistry are published OnlineFirst with an individual DOI. In references, Topics in Organometallic Chemistry is abbreviated as Top Organomet Chem and cited as a journal.