Palladium-Catalyzed Insertion of N-tosylhydrazones and Trapping with Carbon Nucleophiles
摘要:
A Pd-catalyzed three-component cross-coupling reaction of vinyl iodide, N-tosylhydrazone, and carbon nucleophiles is reported, and a one-pot procedure is also developed. The cross-coupling is proposed to proceed through a palladium-carbene migratory Insertion, carbopalladation other than classic palladium-carbene migratory insertion, and beta-H elimination. Moreover, the reaction proceeds under mild conditions and with high stereoselectivity.
Synthesis of Cyclopropane-containing Building Blocks via Ir-Catalyzed Enantioselective Allylic Substitution Reaction
作者:Jibao Xia、Chunxiang Zhuo、Shuli You
DOI:10.1002/cjoc.201090259
日期:2010.9
Chiral cyclopropane‐containing building blocks, which are very important synthetic intermediates for natural products or pharmaceuticals, were easily synthesized via Ir‐catalyzed enantioselective allylic substitution reaction.