Visible-Light-Induced[4+1]Cyclization-Aromatization of Acylsilanes andα,β-Unsaturated Ketones  

作　　者：Zhihong Zhu Weilu Zhang Yizhi Zhang Shanshan Liu Xiao Shen 

机构地区：[1]Institute for Advanced Studies,Engineering Research Center of Organosilicon Compounds and Materials,Ministry of Education,Wuhan University,Wuhan 430072

出　　处：《CCS Chemistry》2023年第2期325-333,共9页中国化学会会刊（英文）

基　　金：the National Natural Science Foundation of China(grant no.21901191);the Fundamental Research Funds for the Central Universities,and Wuhan University for financial support.

摘　　要：Herein we report the first[4+1]cyclization-aromatization reaction of acylsilanes andα,β-unsaturated ketones.The unprecedented visible-light-induced reaction proceeded through mild conditions without addition of any catalyst or additive,affording a variety of furans with broad substrate scope and good functional-group tolerance.The synthetic utility of the method was demonstrated by various downstream transformations of the otherwise difficult-to-access sulfone-containing silyl furans.The mechanism study reveals that 1,4-diketones are not likely to be the intermediates of the reaction.

关 键 词：acylsilane α β-unsaturated ketone CARBENE photo chemistry cyclization-aromatization FURAN 

分 类 号：O621.251[理学—有机化学]