615552-87-9Relevant academic research and scientific papers
A novel and efficient 4-oxothiazolidine-1,2-dithiole rearrangement induced by Lawesson's reagent
Markovic, Rade,Baranac, Marija,Jovetic, Stanka
, p. 7087 - 7090 (2003)
Functionalized 1,2-dithioles have been synthesized by a ring opening-closing process of 5-substituted- and 5-unsubstituted-2-alkylidene-4-oxothiazolidines with Lawesson's reagent. The 13C NMR data confirmed the meso-ionic structure of these aromatic-type 1,2-dithioles.
Regioselective synthesis of 1,3-thiazines by sequential 4-oxothiazolidine to 1,2-dithiole to 1,3-thiazine transformations: role of intramolecular non-bonded S?O interactions
Ra?ovi?, Aleksandar,Steel, Peter J.,Kleinpeter, Erich,Markovi?, Rade
, p. 1937 - 1945 (2007/10/03)
A new synthetic approach to 2,3-dihydro-4H-1,3-thiazine derivatives based upon reductive rearrangement of 1,2-dithiole-3-ylidene thiones has been developed. In turn, the 1,2-dithiole derivatives were prepared by an efficient ring-opening-closing process of 2-alkylidene-4-oxothiazolidines, induced in the presence of Lawesson's reagent by intramolecular non-bonded 1,5-type S?O interactions in the 4-oxothiazolidine precursors.
