by successive reaction with PCl5 and Lawesson reagent in pyridine. This new thioketone 4b was transformed into 1-chlorocyclobutanesulfanyl chloride 5 and chloro 1-chlorocyclobutyl disulfide 9 by treatment with PCl5 and SCl2, respectively, in chlorinated solvents (Schemes 1 and 2). These products reacted with S- and P-nucleophiles by substitution of Cl− at the S-atom; e.g., the reaction with 4b yielded
Generation and Rearrangement of Some Spirocycloaliphatic Thiosulfines and Dithiiranes
作者:Jarosław Romański、Hans Peter Reisenauer、Holm Petzold、Wolfgang Weigand、Peter R. Schreiner、Grzegorz Mlostoń
DOI:10.1002/ejoc.200800023
日期:2008.6
The flash-vacuumpyrolysis of selected dispirodicycloaliphatic 1,2,4-trithiolanes was studied by using matrix isolation techniques. The formation of thiosulfines and dithiiranes along with the corresponding thioketones was detected spectroscopically and confirmed by comparison with computed spectra. In the case of tetramethylcyclobutanone 1,2,4-trithiolane, the thermal formation of the dithiolactone