过渡金属卡宾配合物——Ⅱ.π-环戊二烯基二羰基[苯基(三苯基铅基)卡宾]铼配合物的合成

TRANSITION METAL CARBENE COMPLEXES——Ⅱ.SYNTHESIS OF THEπ-GYCLOPENTADIENYL(DICARBONYL)[PHENYL(TRIPHENYLPLUMBYL)CARBENE]RHENIUM COMPLEX

π-环戊二烯基二羰基(苯基卡拜)铼-四氯硼酸盐,[π-CH(CO)ReC(CH)]BCl(1),在低温下与三苯基铅酸锂,LiPb(CH)反应,铅酸盐阴离子加成到阳离子卡拜配合物的卡拜碳原子上,生成π-环戊二烯基二羰基[苯基(三苯基铅基)卡宾]铼,π-CH(CO)ReC(CH)[Pb(CH)](2).化合物2的结构由元素分析和光谱测定鉴定.

π-Cyclopentadienyl(dicarbonyl)(phenylcarbyne)rheniumtetrachloroborate,[π-CH(CO)ReC(CH)]BCl(1),reacts with lithium triphenylplumbate,LiPb(CH,)at low temperature,with addition of the plumbate anion to the carbyne carbon to giveπ-Cyclopentadienyl(dicarbonyl)[phenyl(triphenylplumbyl)carbene]rhenium,π-CH,(CO)ReC(CH)[Pb(CH)](2).The complex was identified by elemental analyses,and spectroscopic means.