152886-38-9Relevant academic research and scientific papers
Regiospecific Insertion of (1-) and (1-) in the S-C- and Se-C-Bond of Transition-Metal-Coordinated Thietanes and Selenetanes
Fischer, Helmut,Kalbas, Claudia,Troll, Carsten,Fluck, Klaus H.
, p. 1613 - 1620 (2007/10/02)
Pentacarbonyl(thietane)tungsten complexes react with thiocyanate, (1-), and SiO2/H2O by insertion of the CN group into a S-C bond of the four-membered heterocycle, 1,3-migration of the pentacarbonyltungsten fragment and protonation of the nitrogen atom to give tungsten-coordinated thiazinthione complexes.Analogously, the reactions of a thietane tungsten complex with (1-) and SiO2/H2O affords a thiazinselone complex.A selenazinthione complex is obtained from a selenetane complex and (1-) (+ SiO2/H2O).The insertions are regiospecific and stereoselective.The structure of the trans-isomer of a pentacarbonyl(thiazinthione)complex has been established by X-ray structure analysis.Key words: Thietane Complexes, Selenetane Complexes, Insertion, Thiazinchalcone Complexes, Selenazinthione Complex
