Robert B. Osborne, James A. Ibers
1982
Citations
0
Influential Citations
8
Citations
Journal
Journal of Organometallic Chemistry
Abstract
Abstract 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 1 H and 31 P 1 H NMR spectroscopy and by an X-ray structure determination of Pt[ trans -Ph(CN)CC(CN)Ph](PPh 3 ) 2 ·CH 3 OH. Deoxygenation of the ring proceeds with retention of configuration in the final two-carbon olefin fragment. The π-complex Pt[Ph 2 CC(CN) 2 ](PPh 3 ) 2 is isolable, but the olefin dissociates in the presence of alternative ligands. While Pd[Ph(H)CC(CN) 2 ](PPh 3 ) 2 may be isolated, the analogous complex with Ph 2 CC(CN) 2 cannot be.