Sulfonoketenimides as key intermediates for the synthesis of 2-thioxo-2H-1,3-thiazines and 2-arylimino-2H-1,3-thiazines.
The synthesis of a novel class of highly functionalized 1,3-thiazine derivatives via a copper-catalyzed tandem reaction of 1,1,3,3-tetramethylguanidine, [Formula: see text], sulfonyl azides, and terminal alkynes is described. Using isothiocyanates as the heterocumulene component, affords 2-arylimino-1,3-thiazine derivatives in moderate to good yields.
Department of Chemistry, Tarbiat Modares University, P.O. Box 14115-175, Tehran, Iran, yavarisa@modares.ac.ir.
Issa
I
Yavari
Manijeh
M
Nematpour
Tahereh
T
Damghani
D002384:Catalysis; D012997:Solvents; D013843:Thiazines / Q000138:chemical synthesis* / Q000737:chemistry
D012997:Solvents; D013843:Thiazines