作者:J. Barrau、G. Rima、V. Cassano、J. Satgé
DOI:10.1016/s0020-1693(00)92390-9
日期:1992.8
This work concerns the synthesis of [bis(dimethylgermyl)alkane]bis(triphenylphosphine)platine(II) and -(diphos)platine(II) Me2Ge(CH2)nGe(Me2)PtL2 (n = 2, L = PPh3 (1), diphos (2); n = l, L = PPh3 (3), diphos (4) and (tetramethyldigermyl)bis(triphenylphosphine)platine(II) and -(diphos)platine(II) Me2GeGe(Me2)PtL2 (L=PPh3 (5), diphos (6). 3 and 5 are obtained by cyclization of bis(dimethylgermyl)alkanes Me2(H)Ge(CH2)nGe(H)Me2 (n = 1 or 2) or 1,1,2,2-tetramethyldigermane Me2(H)GeGe(H)Me2 with (Ph3P)2PtC2H4. The polymeric structures [Me2Ge(CH)2)nGe(Me2)Pt(PPh3)2]m (n = 1 or 2) react with diphos to give the monomer complexes 2 or 4. IR and NMR examinations are reported. Various cleavage reactions with halogens and organic halides are described. Reactions of 2 with phenylacetylene and 1,2,4-triazolinediones afford new heterocycles arising- from formal addition of these unsaturated systems across the Ge-Ge bond of the tetramethyldigermetane Me2Ge(CH2)2GeMe2.