Rhodium-Catalyzed Anti Selective Cross-Addition of Bis(trimethylsilyl)acetylene to Diarylacetylenes via Carbon−Silicon Bond Cleavage
作者:Akinobu Horita、Hayato Tsurugi、Tetsuya Satoh、Masahiro Miura
DOI:10.1021/ol8004003
日期:2008.5.1
addition of bis(trimethylsilyl)acetylene to diarylacetylenes proceeds efficiently and selectively in a formal anti fashion in the presence of [Rh(OH)(cod)]2/bisphosphine and phenol as catalyst and activator, respectively, accompanied by cleavage of one of the C-Si bonds to produce the corresponding (Z)-enynes. The products can further couple with the same or a different diarylacetylene molecule to give
在[Rh(OH)(cod)] 2 /双膦和苯酚分别作为催化剂和活化剂的情况下,将双(三甲基甲硅烷基)乙炔以正式的反方式有效地和选择性地以正反方式进行,同时裂解其中一种C-Si键产生相应的(Z)-烯炔。产物可以进一步与相同或不同的二芳基乙炔分子偶合,生成(Z,Z)-1,2,5,6-四芳基-1,5-己二烯-3-炔,它们显示出较强的固态荧光。