Palladium-Catalyzed Regio- and Stereoselective Synthesis of (<i>E</i>)-1,3-Bissilyl-6-arylfulvenes from Aryl Iodides and Silylacetylenes
作者:Souta Suzuki、Hidenori Kinoshita、Katsukiyo Miura
DOI:10.1021/acs.orglett.9b00144
日期:2019.3.15
3-bissilyl-6-arylfulvenes has been developed. The reaction of aryl iodides with trimethylsilylacetylene in the presence of a catalytic amount of PdBr2 gives 6-aryl-1,3-bis(trimethylsilyl)fulvenes in good to excellent yields with complete regio- and stereoselectivity. The reaction involves trimerization of trimethylsilylacetylene and cleavage of one silyl group. The silylated fulvenes obtained could be converted
已开发出一种有效的合成路线,以合成(E)-1,3-双甲硅烷基-6-芳基富烯。在催化量的PdBr 2存在下,芳基碘化物与三甲基甲硅烷基乙炔的反应以良好的收率和优异的收率以及完全的区域选择性和立体选择性得到6-芳基-1,3-双(三甲基甲硅烷基)富烯酸酯。该反应包括三甲基甲硅烷基乙炔的三聚和一个甲硅烷基的裂解。所获得的甲硅烷基化的富烯可以通过位点选择性卤代甲硅烷基化转化为卤代的富烯。卤化的富烯通入Stille偶联,产生相应的芳基化的富通。