The reactions of platinum(O) and palladium(O) tertiary phosphine complexes with phenyl dicyanooxiranes
作者:Robert B. Osborne、James A. Ibers
DOI:10.1016/s0022-328x(00)89217-7
日期:1982.7
The phenyldicyanooxiranes, trans-2,3-dicyano-2,3-diphenyloxirane, 2,2-dicyano-3,3-diphenyloxirane, and 2,2-dicyano-3-phenyloxirane, are cleaved by platinum(O) tertiary phosphine complexes to afford zerovalent metal—olefin complexes and phosphine oxides. The π-olefin products were characterized by 1H and 31P 1H NMR spectroscopy and by an X-ray structure determination of Pt[trans-Ph(CN)CC(CN)Ph](PPh3)2·CH3OH
苯基二氰基氧杂环戊烷,反式-2,3-二氰基-2,3-二苯基环氧乙烷,2,2-二氰基-3,3-二苯基环氧乙烷和2,2-二氰基-3-苯基环氧乙烷被铂(O)叔膦配合物裂解。得到零价的金属-烯烃配合物和氧化膦。通过1 H和31 P 1 H NMR光谱以及通过Pt [反式-Ph(CN)CC(CN)Ph](PPh 3)2 ·CH 3 OH的X射线结构测定来表征π-烯烃产物。环的脱氧继续保留最终的二碳烯烃片段中的构型。π复数Pt [Ph 2 CC(CN)2 ](PPh 3)2是可分离的,但是烯烃在替代配体的存在下解离。尽管可以分离出Pd [Ph(H)CC(CN)2 ](PPh 3)2,但是不能分离出具有Ph 2 CC(CN)2的类似络合物。