Results 31 to 40 of about 108,676 (277)
Catalytic polymeric nanoreactors : more than a solid supported catalyst [PDF]
, 2012 Polymeric nanostructures can be synthesized where the catalytic motif is covalently attached within the core domain and protected from the environment by a polymeric shell.
Bosman, Liu, Wang, Yan
core +2 more sources
iScience, 2018 Summary: Chiral syn-1,3-diols are fundamental structural motifs in many natural products and drugs. The traditional Narasaka-Prasad diastereoselective reduction from chiral β-hydroxyketones is an important process for the synthesis of these ...
Guanxin Huang +7 more
doaj +1 more source
Hydrazones as Singular Reagents in Asymmetric Organocatalysis [PDF]
, 2016 This Minireview summarizes strategies and developments regarding the use of hydrazones as reagents in asymmetric organocatalysis, their distinct roles in nucleophile–electrophile, cycloaddition, and cyclization reactions.
Fernández Fernández, Rosario Fátima +4 more
core +1 more source
Stereodivergent, Diels-Alder-initiated organocascades employing α,β-unsaturated acylammonium salts: scope, mechanism, and application. [PDF]
, 2017 Chiral α,β-unsaturated acylammonium salts are novel dienophiles enabling enantioselective Diels-Alder-lactonization (DAL) organocascades leading to cis- and trans-fused, bicyclic γ- and δ-lactones from readily prepared dienes, commodity acid chlorides ...
Abbasov, Mikail E +3 more
core +2 more sources
Multifunctional Asymmetric Catalysis.
Chemical and Pharmaceutical Bulletin, 2001 Two types of general and practical enantioselective catalysts, namely, bimetallic complexes and Lewis acid-Lewis base bifunctional catalysts were developed based on the concept of multifunctional catalysis. In the first part of this review, the first example of a catalytic enatioselective nitro-Mannich reaction as well as a direct catalytic ...
M, Shibasaki, M, Kanai
openaire +3 more sources
Cell Reports Physical Science, 2021 Summary: Asymmetric catalysis enabling divergent control of multiple stereocenters remains challenging in synthetic organic chemistry. Although machine-learning-based optimization of molecular catalysis is a rapidly growing research field, the use of ...
Hongyu Chen +7 more
doaj +1 more source
Kinetic Resolution in Asymmetric Epoxidation using Iminium Salt Catalysis [PDF]
, 2013 The first reported examples of kinetic resolution in epoxidation reactions using iminium salt catalysis are described, providing up to 99% ee in the epoxidation of racemic cis ...
Allin, Steven M. +7 more
core +1 more source
Asymmetric Ion‐Pairing Catalysis [PDF]
Angewandte Chemie International Edition, 2012 AbstractCharged intermediates and reagents are ubiquitous in organic transformations. The interaction of these ionic species with chiral neutral, anionic, or cationic small molecules has emerged as a powerful strategy for catalytic, enantioselective synthesis.
Brak, Katrien, Jacobsen, Eric
openaire +3 more sources
Asymmetric catalysis with FLPs
Chemical Society Reviews, 2023 This review provides an overview of the important progress in FLP-catalyzed asymmetric reactions made over the past 15 years, and both the merits and limitations of FLP-catalysis have been highlighted.
Xiangqing Feng, Wei Meng, Haifeng Du
openaire +2 more sources
Nature Communications, 2023 Asymmetric electrochemical synthesis via ion-pairing catalysis is challenging due to interference of the electrolyte with the ion-pairing catalyst.
Xuefeng Tan, Qingli Wang, Jianwei Sun
doaj +1 more source