Stereoselective Synthesis of Secondary Organozinc Reagents and Their Reaction with Heteroatomic Electrophiles
作者:Eike Hupe、Paul Knochel
DOI:10.1021/ol0068400
日期:2001.1.1
text] Various trisubstituted olefins were converted to configurationally stable diorganozinc compounds with high diastereoselectivity. Their reaction with various electrophiles centered on tin, sulfur, bromine, and phosphorus provided the desired substitution products with retention of configuration. Novel, functionalized organocopper reagents such as 4 and chiral diphosphine 5 have been prepared.
Cycloaliphatic/aromatic diphosphines and use thereof in catalysis
申请人:——
公开号:US20040019205A1
公开(公告)日:2004-01-29
The present invention concerns novel unsymmetrical chiral diphosphines of a mixed aliphatic-aromatic type and processes for synthesizing them, complexes of these compounds with [lacuna] and their use as catalysts.