(Z)-diethyl 2-(2-(1,3-dioxolan-2-yl)ethyl)-2-(4-hydroxybut-2-en-1-yl)malonate 在
(IMesAu)(OTf) 作用下,
以
1,1-二氯乙烷 为溶剂,
生成 ethyl 3-(2-(1,3-dioxolan-2-yl)ethyl)-2-oxo-5-vinyltetrahydrofuran-3-carboxylate 、 ethyl 3-(2-(1,3-dioxolan-2-yl)ethyl)-2-oxo-5-vinyltetrahydrofuran-3-carboxylate