文献类型：期刊文献

英文题名：An unusual Me₃SiI-promoted [4+2] annulation and reduction: an efficient approach to construct 4H-benzopyrans

作者：Wang, Feijun[1,2];Qu, Mingliang[1,2];Chen, Feng[1,2];Li, Li[1,2];Shi, Min[1,2,3]

机构：[1]E China Univ Sci & Technol, Key Lab Adv Mat, Shanghai 200237, Peoples R China;[2]E China Univ Sci & Technol, Inst Fine Chem, Shanghai 200237, Peoples R China;[3]Chinese Acad Sci, Shanghai Inst Organ Chem, State Key Lab Organometall Chem, Shanghai 200032, Peoples R China

年份：2012

卷号：48

期号：3

起止页码：437

外文期刊名：CHEMICAL COMMUNICATIONS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000297704500032)，CCR-EXPANDED(收录号:WOS:000297704500032)】；

基金：Financial support from the National Natural Science Foundation of China (21072206, 20902019, 20472096, 20872162, 20672127, 20821002 and 20732008), the National Basic Research Program of China (973)-2010CB833302, and the Fundamental Research Funds for the Central Universities (WJ1014034 and WK1013004) is gratefully acknowledged.

语种：英文

摘要：Me3SiI-promoted reaction of salicylic aldehydes with beta-dicarbonyl compounds provided a facile way to construct 4H-benzopyrans in moderate to good yields. This tandem reaction proceeds with high efficiency through nucleophilic addition, silyl enol ether formation, substitution, reduction, and intramolecular nucleophilic cyclization.