Tetrahedron

An efficient approach to construct 2-arylbenzo [b] furans from 2-methoxychalcone epoxides

L Ruan, M Shi, S Mao, L Yu, F Yang, J Tang

文献索引：Ruan, Libo; Shi, Min; Mao, Shiwei; Yu, Lifang; Yang, Fan; Tang, Jie Tetrahedron, 2014 , vol. 70, # 5 p. 1065 - 1070

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被引用次数: 13

摘要

Abstract An efficient and practical method for construction of 2-arylbenzo [b] furans from 2- methoxychalcone epoxides has been reported. Catalyzed by 2 mol% of BF 3· Et 2 O, 2- methoxychalcone epoxides went through the Meerwein rearrangement, followed by deformylation in one-pot to successfully afforded 2-methoxydeoxybenzoins. Afterward, 2- arylbenzo [b] furans were obtained in high yields (87%–100%) via intermolecular ...