A straightforward route to polyenylsilanes by palladium- or nickel-catalyzed cross-coupling reactions
作者:Francesco Babudri、Gianluca M. Farinola、Vito Fiandanese、Luigia Mazzone、Francesco Naso
DOI:10.1016/s0040-4020(97)10209-5
日期:1998.2
ipso-borodesilylation with BCl3 followed by Pd-catalyzed coupling reactions of the resulting boron derivative with aryl halides, whereas the synthesis of alkyl substituted polyenes requires the conversion of the boron intermediate into iodo-derivative and the subsequent coupling with alkyl Grignard reagents in the presence of a Ni(II) catalyst.
描述了通过交叉偶联反应将双甲硅烷基化的二烯和三烯有效转化为多烯基硅烷。的芳基取代的多烯是由合成本位-borodesilylation与Bcl 3,随后加入Pd催化的偶联与芳基卤将所得硼衍生物的反应,而烷基取代的多烯的合成需要硼中间体转化成碘-衍生物和随后的在Ni(II)催化剂存在下与烷基Grignard试剂偶联。