Controllable single- or double-oxa-Michael addition of ynones with alcohols: Synthesis of 3-alkoxyprop-2-en-1-ones and 3,3-dialkoxypropan-1-ones
作者:Zheng Li、Jiaojiao He、Xiao Chen、Ya Cheng、Jingya Yang
DOI:10.1016/j.tet.2018.09.054
日期:2018.11
Single- or double-oxa-Michael addition of ynones with various alcohols was achieved at room temperature. (E)-3-Alkoxyprop-2-en-1-ones and 3,3-dialkoxypropan-1-ones were efficiently synthesized by time-controlling approach. This protocol has advantages of wide range of substrates, no transition metal catalyst, mild condition, high yield and high stereoselectivity. (C) 2018 Elsevier Ltd. All rights reserved.