Iridium-catalyzed asymmetric hydroalkynylation reactions of oxabenzonorbornadienes
作者:Jun Hu、Qingjing Yang、Jianbin Xu、Chao Huang、Baomin Fan、Jun Wang、Chengyuan Lin、Zhaoxiang Bian、Albert S. C. Chan
DOI:10.1039/c2ob26775f
日期:——
Oxabenzonorbornadienes were found to be suitable substrates for asymmetric hydroalkynylation reactions. Catalyzed by the complex of [Ir(COD)Cl]2 and (R)-SYNPHOS, oxabenzonorbornadienes and terminalalkynes could react smoothly to give the alkynylated products in moderate to good yields (up to 93% yield) and enantioselectivities (up to 85% ee).