Base-controlled selective construction of polysubstituted dihydrofuran and furan derivatives through an I2-mediated cyclization
作者:Chun-Bao Miao、Rui Liu、Yan-Fang Sun、Xiao-Qiang Sun、Hai-Tao Yang
DOI:10.1016/j.tetlet.2016.12.078
日期:2017.2
A base-controlled formal [3 + 2] cycloaddition of 1,3-dicarbonyl compounds to enones via an I-2-mediated cyclization was reported. Highly functionalized dihydrofurans and furans were selectively obtained under I-2/DMAP and I-2/DBU conditions in the cyclization step, respectively. (C) 2016 Elsevier Ltd. All rights reserved.