and/or isolated in the reaction of [PdPfBr(NCMe)2] (Pf = C6F5) with the dienes R−CHCH−(CH2)n−Y−(CH2)m−CHCH2 (R = H, Me; n, m = 0, 1; Y = CCl2, C(COOMe)2, CO2, O, SiMe2, SO2). Insertion of one double bond into the Pd−aryl bond and coordination of the remaining double bond gives the above-mentioned organometallic derivatives. The dienes tested have a non-hydrogen-containing link (Y), so Pd migration to give
η 1个-η 2已被检测和/或在反应中分离[PdPfBr(NCMe)-Enylpalladium络合物2 ](PF = C 6 ˚F 5)与所述二烯烃R-CH CH-(CH 2)Ñ -Y- (CH 2)m -CH CH 2(R = H,Me; n,m = 0,1; Y = CCl 2,C(COOMe)2,CO 2,O,SiMe 2,SO 2)。在Pd-芳基键中插入一个双键并与其余双键配位,得到上述有机
金属衍
生物。二烯测试具有含非氢链路(Y),所以
钯的迁移,得到η 3 -烯丙基衍
生物被阻止。为η观察到的演化和分解过程1 -η 2 -enyls表明β-X消除为Y =
四氯化碳主操作途径2(X = Cl)的或Y = OCO,O,森达2(X = YR” )。当Y = C(COOMe)2或SO 2时,未观察到C-X裂解,并且分子内插入分别给出环状产物或Pd-H消除以生成取代的二烯为主。根据这些结果,可