synthesis of tricyclic nitrogen heterocycles from N,2-diallylaniline derivatives is described. These transformations proceed via sequential alkene aminopalladation of an intermediate LnPd(Ar)(NRR′) species followed by alkene carbopalladation of the resulting LnPd(Ar)(R) complex. Both alkene insertion steps occur in preference to C−N or C−C bond-forming reductive elimination. An unusual 1,3-palladium shift
描述了一种从N ,2-
二烯丙基苯胺衍
生物合成
三环氮杂环的新方法。这些转化通过中间体 L n Pd(Ar)(NRR') 物种的连续烯烃
氨基
钯化,然后是所得 L n Pd(Ar)(R) 络合物的烯烃碳
钯化进行。两个烯烃插入步骤都优先于 CN 或 CC 键形成还原消除。当2时,发生异常1,3-
钯移-烯丙基-N-(2-
乙烯基苯基)
苯胺被用作底物,其产生具有三个连续的立构中心的分子四环。