neutral complex [(mes)OsH(OMe)(iPr2PCHCH2)]. The reaction of the chelate compound [(mes)OsClκ2(P,O)-iPr2PCH2C(OMe)O}]PF6 with KOtBu leads to the formation of the corresponding uncharged phosphanyl ester enolate−osmium(II) complex by proton abstraction from the PCH2 unit. The ester enolate complex reacts with phenyl isocyanate and diphenylketene by insertion of the heterocumulene into the enolate C−H bond
具有[(
MES)OS i Pr 2 P(CH 2)n Y}]的单和二氢OS(II)化合物(
MES =
均三甲苯,1,3,5-三甲基苯; n = 2,Y = NMe 2,OMe ;n= 3,Y = NMe 2)作为分子单元是在
乙醇存在下由二
氯衍
生物[(
MES)OSCl 2 i Pr 2 P(CH 2)n Y}]和
镁汞齐在THF中制备的。处理后的[(
MES)OS(X)
氯κ 1(P) -我
镨2 P(CH 2)2得到具有AgPF 6的CH 2 Cl 2阳离子配合物,其中i Pr 2 P(CH 2)2 Y为螯合
配体。与Y = OME化合物反应(对于X = Cl)的与L = CO和CNME通过螯合键的开口,得到PF 6盐[(
MES)OS(L)
氯κ 1(P) -我
镨2 P(CH 2)2 Y}] PF 6和(对于X = H)与KO t Bu一起通过官能化的膦片段化而得到中性络合物[(
MES)OSH(OMe)(i