Cascade Ring-Opening Dual Halogenation of Cyclopropenones with Saturated Oxygen Heterocycles
作者:Wei-Hang Miao、Wen-Xia Gao、Xiao-Bo Huang、Miao-Chang Liu、Yun-Bing Zhou、Hua-Yue Wu
DOI:10.1021/acs.orglett.1c03566
日期:2021.12.17
saturated oxygen heterocycles, providing an efficient method for the synthesis of 3-haloacrylates. The ring-opening reaction enables the construction of two C–X (X = Cl, Br, or I) bonds and a C–O bond as well as the cleavage of two C–O bonds and a C–C bond in a single step. This protocol is highly atom economical, has an excellent substrate scope, and exhibits the ability for gram-scale reaction.
代表的是 CuX 2 - 或 I 2促进的环丙烯酮与饱和氧杂环的开环双卤化,为合成 3-卤代丙烯酸酯提供了一种有效的方法。开环反应能够构建两个 C-X(X = Cl、Br 或 I)键和一个 C-O 键,以及在一个单一的过程中裂解两个 C-O 键和一个 C-C 键。步。该协议具有高度的原子经济性,具有出色的底物范围,并具有进行克级反应的能力。