An efficient synthesis of 2,3,5-trisubstituted furans from α,β-unsaturated ketones
作者:Catherine D. Brown、J.Michael Chong、Lixin Shen
DOI:10.1016/s0040-4020(99)00898-4
日期:1999.12
A simple, regioselective synthesis of 2,3,5-trisubstituted furans is described. Conjugate addition of alkynylboronates to α,β-unsaturated ketones, followed by acid-catalyzed cyclization of the resulting γ-alkynyl ketones affords trisubstituted furans in 31–97% overall yields.
描述了2,3,5-三取代的呋喃的简单的区域选择性合成。将炔基硼酸酯加成到α,β-不饱和酮上,然后酸催化环化所得的γ-炔基酮,可得到三取代呋喃,总产率为31-97%。