52730-98-0Relevant articles and documents
Reactions of Mesoionic Five-Membered Heterocycles with o-Quinonoid Compounds, IV. Mono- and Tricyclic 1,3-Thiazolium-4-olates, 1,3-Dithiolylium-4-olates
Friedrichsen, Willy,Schroeer, Wolf-D.,Schwarz, Ingo,Boettcher, Andreas
, p. 609 - 621 (2007/10/02)
Monocyclic 1,3-thiazolium-4-olates (10) react with o-quinonoid compounds to give cycloadducts (12,13); tricyclic 1,3-thiazolium-4-olates (14,15) yield compounds (17,18,19,20) which can formally be derived from a ketene tautomer (C). 1,3-Dithiolylium-4-olates are borderline cases; both (32) and adducts (34) were obtained. - Keywords: o-Quinones, Heterocycles