A Novel One-Pot Reaction: Zwitterionic Rhodium Complex-Catalyzed Hydroaminovinylation of Vinyl Sulfones and a Vinylphosphonate
作者:Yong-Shou Lin、Bassam El Ali、Howard Alper
DOI:10.1021/ja010923+
日期:2001.8.1
A new one-pot hydroaminovinylation reaction has been achieved for the synthesis of sulfonated and phosphonated enamines using the zwitterionic rhodium complex Rh+(cod)(η6-PhBPh3)together with a chelating phosphine ligand as the catalyst. E.g., hydroaminovinylation of MeSO2CH:CH2 in the presence of syngas and Me2CHNH2 gave MeSO2CMe:CHNHCHMe2 and byproduct MeSO2CH2CH2NHCHMe2. The regioand stereoselectivity
使用两性离子铑配合物 Rh+(cod)(η6-PhBPh3) 和螯合膦配体作为催化剂,实现了一种新的一锅氢氨基乙烯基化反应,用于合成磺化和膦酸化的烯胺。例如,在合成气和 Me2CHNH2 存在下,MeSO2CH:CH2 的氢氨基乙烯基化得到 MeSO2CMe:CHNHCHMe2 和副产物 MeSO2CH2CH2NHCHMe2。反应的区域选择性和立体选择性通常非常好。