440362-25-4Relevant academic research and scientific papers
Photochemical synthesis of triazolo[3,4-b]-1,3(4H)-benzothiazines: A detailed mechanistic study on photocyclization/photodesulfurisation of triazole-3-thiones
Senthilvelan,Thirumalai,Ramakrishnan
, p. 851 - 860 (2007/10/03)
Irradiation of 4-(2-halobenzyl)-5-substituted-1,2,4-triazole-3-thiones under base mediated (CH3CN/2 M NaOH) condition afforded triazolo[3,4-b]-1,3(4H)-benzothiazines and desulfurized triazoles. Benzophenone sensitized photolysis of triazole-3-thiones gave desulfurized triazoles exclusively. The mechanism of the photocyclization/photodesulfurization and the involvement of singlet and triplet energy levels are discussed.
