Highly Chemo- and Diastereolective Dearomative [3 + 2] Cycloaddition Reactions of Benzazoles with
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dinosaurtrumpetDonor–Acceptor Oxiranes
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期刊名称： Organic Letters
英语能力竞赛作者： Zhang, Shan-Shan,Wang, Dong-Chao,Xie, Ming-Sheng,Qu, Gui-Rong,Guo,complain的用法
Hai-Ming
thereisnospoon年份： 2018年
摘要：A Sc(OTf)3-catalyzed dearomative [3 + 2] cycloadditionof benzazoles with donor–acceptor oxiranes through chemolectiveC–C bond cleavage of oxiranes
was developed under mild conditions.This reaction provides an efficient method to construct benzazolo[3,2-]o xazole compounds in good yields and with high diastereolectivity.The reaction has
a general substrate scope, and the donor–acceptoroxiranes with electron-donating and electron-withdrawing groups onthe aromatic ring afforded the desired cycloadducts.
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