New routes to thioketenes and propadienethione by flash vacuum thermolysis
作者:Yannick Vallée、Serge Masson、Jean-Louis Ripoll
DOI:10.1016/s0040-4020(01)90527-7
日期:1990.1
The retro-Diels-Alder reaction under flashvacuumthermolysis (FVT) conditions was applied to the synthesis of simple unstabilized thioketenes. Alternatively, these reactive thiocarbonyl compounds were obtained by FVT elimination of methyltrimethylsilyl sulfide from silylated ketene dithioacetals (and for thioketene itself from methyl trimethylsilyl dithioacetate). A synthesis of propadienethione associating
Coordination chemistry, reactivities, and stereoelectronic properties of chelating phosphine ligands containing thioamide substituents
作者:Pak-Hing Leung、Ying Qin、Guosen He、K. F. Mok、Jagadese J. Vittal
DOI:10.1039/b007970g
日期:——
phosphanorbornenes could be liberated from these product complexes by treatment with aqueous cyanide. For comparison purposes, the novel ligand Ph2PC(S)NMe2 was prepared. This short-chain ligand displaced acetonitrile and monodentate phosphine ligands on PdII to form stable 4-membered P–S chelates. The CS bond in these sterically hindered chelates are unreactive toward cycloaddition reaction with the