Treatment of the ethoxy carbenes [M(SnPh3)(CO)2C(OEt)Ph}(η-C5H5)](M = Mo or W) with LDA or LDA/HMPA followed by PhC(O)Cl results in the carbyne complexes [M(CO)2(CPh)(η-C5H4SnPh3)]via anions [M(CO)2C(OEt)Ph}(η-C5H4SnPh3)]â, while treatment of [W(SnPh3)(CO)3(η-C5H5)] with LiPh followed by TMEDA/MeC(O)Cl results in the carbyne [W(CO)2(CPh)(η-C5H5)].
用
LDA 或
LDA/HMPA 处理乙氧基卡宾 [M(SnPh3)(CO)2C(OEt)Ph}(δ-
C5H5)](M = Mo 或 W),然后用 PhC(O)Cl 处理,结果为碳炔配合物 [M(CO)2(CPh)(δ-C5H4SnPh3)] 通过阴离子 [M(CO)2C(OEt)Ph}(δ-C5H4SnPh3)]–,同时处理 [W (SnPh3)(CO)3(δ- )] 与 LiPh 反应,然后 TME
DA/MeC(O)Cl 产生碳炔 [W(CO)2(CPh)(δ- )]。