81837-96-9Relevant articles and documents
2,4-Bis(4-methylphenylthio)-1,3,2λ5,4λ5-dithiadiphosphetane-2,4-dithione: A New Reagent for Thiation of N,N-Disubstituted Amides
Wipf, Peter,Jenny, Christjohannes,Heimgartner, Heinz
, p. 1001 - 1011 (2007/10/02)
As a new reagent for the thiation of amides, the easily accessible 2,4-bis(4-methylphenylthio)-1,3,2λ5,4λ5-dithiadiphosphetane-2,4-dithione (9) shows a remarkable selectivity.This selectivity - the preferred thiation of N,N-disubstituted amides - is complementary to the one of the well known Lawesson reagent.Thiation of diamides of type 2 with 9 leads via cyclization of the corresponding dithiodiamides directly to 1,3-thiazole-5(4H)-thiones 1.
1,3-Dipolare Cycloadditionen von 2-(Benzonitrilio)-2-propanid mit 4,4-Dimethyl-2-phenyl-2-thiazolin-5-thion und Schwefelkohlenstoff
Obrecht, Daniel,Prewo, Roland,Bieri, Jost H.,Heimgartner, Heinz
, p. 1825 - 1836 (2007/10/02)
Irradiation of 2,2-dimethyl-3-phenyl-2H-azirine (11) in the presence of 4,4-dimethyl-2-phenyl-2-thiazolin-5-thione (7) yields a mixture of the three (1:1)-adducts 8, 12 and 13 (Schemes 3 and 6).The formation of 8 and 12 can be explained by 1,3-dipolar cyc