Abstract
A series of novel 5-thioxopyrrolidin-2-ones and 6-thioxopiperidin-2-ones was synthesized using Lawesson's reagent in thionation of the appropriate imides. The NMR data were determined, and in one case the structure assignment was additionally supported by X-ray crystallography.
Dedicated to Professor Marian Mikołajczyk, CBMiM PAN in Łódź, Poland, on the occasion of his 70th birthday.
Financial support from grants PBZ-KBN-126/T09/2004/13 and 501/68-BW-175610 is gratefully acknowledged.
Notes
$ Satisfactory microanalyses were obtained for all compounds: C ± 0.22, H ± 0.08, N ± 0.08, S ± 0.14%.
# Exchangeable with D2O.