Highly chemo- and regio-selective [2 + 2 + 2] cycloaddition of unsymmetrical 1,6-diynes with terminal alkynes catalyzed by Cp*Ru(cod)Cl under mild conditions
作者:Yoshihiko Yamamoto、Ryuji Ogawa、Kenji Itoh
DOI:10.1039/b000466i
日期:——
Ru(II)-catalyzed cycloaddition of unsymmetrical 1,6-diynes gives the desired cycloadducts in high yields with a regioselectivity meta∶ortho = 88∶12–98∶2.
Ru(II) 催化的不对称 1,6-二炔的环加成以高产率得到所需的环加合物,区域选择性间位:邻位 = 88:12–98:2。