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。