An Efficient CuI-Promoted Synthesis of Tri- and Tetrasubstituted Alkenes Using Organozinc Species
作者:Song Xue、Lin He、Yong-Kang Liu、Kai-Zhen Han、Qing-Xiang Guo
DOI:10.1055/s-2006-926299
日期:——
An efficient method for the synthesis of multifunctionalized alkenes has been developed. In the presence of 5 mol% Cul as catalyst, organozinc species CF 3 COOZnEt, CF 3 COOZnMe and CF 3 COOZnPh reacted with α,β-acetylenic ketones and aldehydes in one pot providing trisubstituted alkenes in high yields with stereoselectivity. The reaction with β-substituted-α,β-acetylenic ketones gave tetrasubstituted
开发了一种合成多官能化烯烃的有效方法。在 5 mol% Cul 作为催化剂存在下,有机锌物质 CF 3 COOZnEt、CF 3 COOZnMe 和 CF 3 COOZnPh 与 α,β-乙炔酮和醛在一锅中反应,以高收率和立体选择性提供三取代烯烃。与β-取代-α,β-炔酮反应以Z-异构体为主要产物,以良好的收率得到四取代烯烃。