The reaction of pentacarbonyl(diphenylcarbene)tungsten, (CO)5WCPh2 (I), with organyl nitriles, RCN (II) (R = C6H4NMe2-p (b), Ph (c), Me (d), But (e)), yields the insertion product (CO)5W[C(R)NCPh2] (III), the nitrile complexes (CO)5WNCR (IV) and cis-(CO)4W(NCR)2 (V) and diphenyl ketene, Ph2CC). The product distribution depends on the type and the concentration of the organyl nitrile II. At contant
五羰基(diphenylcarbene)
钨,(CO)反应5 WCPh 2(I)中,用有机基腈,RCN(II)(R = C 6 H ^ 4 NME 2 - p)(B)中,Ph(C中,Me(d),卜吨(E)),产生了插入产物(CO)5 W [C(R)NCPh 2 ](III),腈络合物(CO)5 WNCR(IV)和顺式-(CO)4 W(NCR)2(V)和联
苯乙烯酮Ph 2CC)。产物分布取决于有机基腈II的类型和浓度。在恒定温度下,随着II浓度的增加,III的产率增加,IV的产率以及
二苯乙烯酮的产率降低,并且顺序为IId,IIc,IIb,IIa。当I在13 CO的存在下与IIb反应时,13 CO几乎完全掺入IVb中。