Indium(III)-catalyzed asymmetric alkynylation of aryl, heteroaryl, alkyl and alkenyl aldehydes with 2-methyl-3-butyn-2-ol as an ethyne equivalent donor was realized, and products were obtained in moderate to good yields (up to 97%) and high enantioselectivities (up to 99% ee) using 2–10 mol% of catalyst.
铟(III)催化下,以
2-甲基-3-丁炔-2-醇作为
乙炔等效供体,实现了芳基、杂芳基、烷基和烯基醛的不对称炔基化反应。使用2-10 mol%的催化剂,产物收率中等至良好(高达97%),并且具有高对映选择性(高达99% ee)。