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Skeletal contraction:A novel strategy to access multisubstituted cyclobutane
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作者 Chunfa Xu v.u.bhaskara rao Fen-Er Chen 《Green Synthesis and Catalysis》 2022年第1期1-3,共3页
The polysubstituted and spirocyclic cyclobutanes were efficiently constructed by the utilization of a novel skeletal contraction strategy which only took one-step synthesis from the readily accessible pyrrolidines.The... The polysubstituted and spirocyclic cyclobutanes were efficiently constructed by the utilization of a novel skeletal contraction strategy which only took one-step synthesis from the readily accessible pyrrolidines.The mechanistic studies indicated that a key intermediate N-aminated pyrrolidine was formed initially and subsequent extrusion of a nitrogen via a radical pathway completed the transformation.This practical methodology was further highlighted by the concise,formal synthesis of the cytotoxic natural product piperarborenine B. 展开更多
关键词 CYCLOBUTANE Skeletal contraction Hypervalent iodine PYRROLIDINES Piperarboreine B
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