摘要:
The unsaturated alkenyl complexes Ru(CO)Cl(RC=CHR')(PPh3)2 react with CS2 and CO2 to give Ru(CO)(Cl(S2CRC=CHR')(PPh3)2 and Ru(CO)Cl(O2CRC= CHR')(PPh3)2 complexes, respectively. The products are hexacoordinated-ruthenium (II) complexes containing alkenedithiocarboxylate or alkenecarboxylate ligands eta-2-coordinated to metal. In these reactions CS2 and CO2 insert into ruthenium-alkenyl bonds to form new chelated ligands. The structures of products and the nature of the alkene-dithiocarboxylate and alkenecarboxylate ligands have been established from spectroscopic data (IR, H-1 and P-31 NMR).