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Palladium-catalyzed annulative allylic alkylation for regioselective construction of indole-fused medium-sized cyclic etherS
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作者 Ling-Qi Chen chi-fan zhu +4 位作者 Su Zhang Bao-Yang Liu Shu-Jjiang Tu Wen-Jjuan Hao Bo Jiang 《Chinese Chemical Letters》 SCIE CAS CSCD 2023年第12期155-158,共4页
A new palladium-catalyzed annulative allylic alkylation(AAA)reaction of 2-(indol-2-yl)phenols with dual allylic electrophiles such as isobutylene dicarbonate and butene dicarbonate is described,leading to the regiosel... A new palladium-catalyzed annulative allylic alkylation(AAA)reaction of 2-(indol-2-yl)phenols with dual allylic electrophiles such as isobutylene dicarbonate and butene dicarbonate is described,leading to the regioselective synthesis of tetracyclic medium-sized cyclic ethers possessing a bridged aryl-indole scaf-fold,namely,benzo[2,3]oxocino[4,5-b]indoles and benzo[2,3]oxepino[4,5-b]indoles,in good to excellent yields.This protocol demonstrates a broad substrate scope,good compatibility with substituents and high regioselectivity,providing a catalytic and flexible method for creating bridged aryl-indole skeletons. 展开更多
关键词 Palladium-catalysis Annulative allylic alkylation [5+n]annulation Regioselectivity Medium-sized cyclic ethers
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