catalytic in the oxidant. The complexes (2) are also prepared via(a) the substitution of [RhBr(CO)2(η-C5Ph5)][ZnCl3] with PPh3 or AsPh3 and subsequent reduction by [N(PPh3)2][Mn(CO)5], (b)[Co(η-C5H5)2] reduction of [MI2(CO)(η-C5Ph5)](3, M = Co) in the presence of P(OMe)3 or P(OPh)3, or (c)[Co(η-C5H5)2] reduction of [RhBr2P(OMe)3}(η-C5Ph5)](5) in the presence of CO. Complexes (3, M = Co or Rh) are prepared
的[CO反应2(CO)8 ]或[的RhCl(CO)2 } 2 ]使用C 5博士5 Br和在
四氢呋喃(THF)
锌粉给出[M(CO)2(η-C 5博士5)](1,M = Co或Rh); 在
铑的情况下,中间[RhBr(CO)2(η-C 5博士5)] [
氯化锌3如果反应是在苯中进行]是可分离的。在存在的[Fe(η-C 5 H ^ 5)2 ] +,(1,M = Rh)经
配体L的氧化诱导的羰基取代;对于L = P(OPH)3,形成[M(CO)L(η-C 5博士5)] [ 2,M = RH,L = P(OPH)3 ]是在氧化剂的催化。(复合物2还制备)经由(一个)所述的取代[RhBr(CO)2(η-C 5博士5)] [
氯化锌3 ]与PPH 3或A
SPH 3,并通过随后的还原[N(PPH 3)2 ] [
锰(CO)5 ],(b)[CO(η-C 5ħ 5)2 ]还原[MI的2(CO)(η-C 5博士5)](3在P的存在下(OME),M