Enantioselective Parallel Synthesis Using Polymer-Supported Chiral Co(salen) Complexes
摘要:
[GRAPHICS]The kinetic resolution of epoxides with phenols catalyzed by a polymer supported Co(salen) complex is applied to the first enantioselective catalytic synthesis of parallel libraries, The corresponding 1-aryloxy-2-alcohols are obtained in high yield, purity, and enantiomeric excess. Further elaboration with diversity elements provides highly efficient access to important classes of pharmacologically active compounds.
Enantioselective Parallel Synthesis Using Polymer-Supported Chiral Co(salen) Complexes
作者:Stefan Peukert、Eric N. Jacobsen
DOI:10.1021/ol990920q
日期:1999.10.1
[GRAPHICS]The kinetic resolution of epoxides with phenols catalyzed by a polymer supported Co(salen) complex is applied to the first enantioselective catalytic synthesis of parallel libraries, The corresponding 1-aryloxy-2-alcohols are obtained in high yield, purity, and enantiomeric excess. Further elaboration with diversity elements provides highly efficient access to important classes of pharmacologically active compounds.
Nickel-Catalyzed C(sp<sup>3</sup>)–O Hydrogenolysis via a Remote-Concerted Oxidative Addition and Its Application to Degradation of a Bisphenol A-Based Epoxy Resin
作者:Yumeng Liao、Kohei Takahashi、Kyoko Nozaki
DOI:10.1021/jacs.3c09061
日期:2024.1.31
In this work, we developed a nickel-catalyzedtransfer hydrogenolysis of 1-aryloxy-3-amino-2-propanols, which is a model compound of an amine-cured bisphenol A (BPA)-based epoxy resin. Mechanistic investigation revealed that the hydroxy group acts as the hydrogen donor to generate α-aryloxy ketone, which undergoes an unprecedented remote-concerted oxidative addition of the C(sp3)–O bond as suggested