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Asymmetric Synthesis with Chemical and Biological Methods

A plethora of top German scientists with an international reputation covers various aspects, from classical organic chemistry to process development, and from the theoretical background to biological methods using enzymes.

Throughout the focus is on the development of new synthetic methods in asymmetric synthesis, the synthesis of natural and bioactive compounds and the latest developments in both chemical and biological methods of catalysis, as well as the investigation of special technical and biotechnical aspects.

Buy Asymmetric Synthesis with Chemical and Biological Methods by From WHSmith today

Asymmetric Synthesis from a Chemical and Biological …

N2 - Flavanones, chromanones, and related structures are privileged natural products that display a wide variety of biological activities. Although flavanoids are abundant in nature, there are a limited number of available general and efficient synthetic methods for accessing molecules of this class in a stereoselective manner. Their structurally simple architectures belie the difficulties involved in installation and maintenance of the stereogenic configuration at the C2 position, which can be sensitive and can undergo epimerization under mildly acidic, basic, and thermal reaction conditions. This review presents the methods currently used to access these related structures. The synthetic methods include manipulation of the flavone/flavanone core, carbon-carbon bond formation, and carbon-heteroatom bond formation. Flavanoids are plant-derived natural products. Although they are ubiquitous in nature, general asymmetric methods for their generation are rarer, due to the lability of the stereochemistry at C2. We discuss methods for the generation of enantio-enriched flavanones, chromanones, andazaflavanones, including chemical and enzymatic resolution, asymmetric reduction, and conjugate addition reactions.

AB - Flavanones, chromanones, and related structures are privileged natural products that display a wide variety of biological activities. Although flavanoids are abundant in nature, there are a limited number of available general and efficient synthetic methods for accessing molecules of this class in a stereoselective manner. Their structurally simple architectures belie the difficulties involved in installation and maintenance of the stereogenic configuration at the C2 position, which can be sensitive and can undergo epimerization under mildly acidic, basic, and thermal reaction conditions. This review presents the methods currently used to access these related structures. The synthetic methods include manipulation of the flavone/flavanone core, carbon-carbon bond formation, and carbon-heteroatom bond formation. Flavanoids are plant-derived natural products. Although they are ubiquitous in nature, general asymmetric methods for their generation are rarer, due to the lability of the stereochemistry at C2. We discuss methods for the generation of enantio-enriched flavanones, chromanones, andazaflavanones, including chemical and enzymatic resolution, asymmetric reduction, and conjugate addition reactions.

Enantioselective synthesis - Wikipedia

Absolute asymmetric synthesis, defined as a chemical process which forms a significant enantiomeric excess of chiral products from non-chiral reactants in the absence of any asymmetric external influence, most probably played an important role in the emergence of biological chirality. A summary of recent related experimental and theoretical advances in this field is given in this review with some emphasis on practical possibilities to test theoretical hypotheses. It is demonstrated that the statistic description of racemization reactions plays a very important role in interpreting absolute asymmetric phenomena. Significant enantiomeric excesses can be formed through amplification processes, which can and should be modeled by stochastic lines of thoughts.

Edited by two of the leading researchers in the field, this book provides a deep, interdisciplinary insight into stoichiometric and catalytic reactions in this continuously expanding area. A plethora of top German scientists with an international reputation covers various aspects, from classical organic chemistry to process development, and from the theoretical background to biological methods using enzymes. Throughout the focus is on the development of new synthetic methods in asymmetric synthesis, the synthesis of natural and bioactive compounds and the latest developments in both chemical and biological methods of catalysis, as well as the investigation of special technical and biotechnical aspects.

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Flavanones, chromanones, and related structures are privileged natural products that display a wide variety of biological activities. Although flavanoids are abundant in nature, there are a limited number of available general and efficient synthetic methods for accessing molecules of this class in a stereoselective manner. Their structurally simple architectures belie the difficulties involved in installation and maintenance of the stereogenic configuration at the C2 position, which can be sensitive and can undergo epimerization under mildly acidic, basic, and thermal reaction conditions. This review presents the methods currently used to access these related structures. The synthetic methods include manipulation of the flavone/flavanone core, carbon-carbon bond formation, and carbon-heteroatom bond formation. Flavanoids are plant-derived natural products. Although they are ubiquitous in nature, general asymmetric methods for their generation are rarer, due to the lability of the stereochemistry at C2. We discuss methods for the generation of enantio-enriched flavanones, chromanones, andazaflavanones, including chemical and enzymatic resolution, asymmetric reduction, and conjugate addition reactions.

Current Progress in Gene Delivery Technology Based …

A plethora of top German scientists with an international reputation cover various aspects, from classical organic chemistry to process development, and from the theoretical background to biological methods using enzymes.

Chemical Society Reviews Blog - Royal Society of …

Throughout, the focus is on the development of new synthetic methods in asymmetric synthesis, the synthesis of natural and bioactive compounds and the latest developments in both chemical and biological methods of catalysis, as well as the investigation of special technical and biotechnical aspects.

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