Synthesis of novel 1,3,4-benzotriazepine derivatives from 4-oxo-3,1-benzoxazine and 3,1-benzothiazine-2-carbonitriles
摘要:
Synthesis of novel oxygen and sulfur containing 1,3,4-benzotriazepine derivatives was performed via 3,1-benz-oxazine and 3,1-benzothiazine intermediates obtained from Appel's salt chemistry. We observed that the sulfur containing precursors reacted differently than their oxygenated congeners and, after rearrangement, afforded novel heterocyclic compounds (e.g., benzoxazin-4-thione and 2-cyanoy 1,3,4-triazepine). (c) 2005 Elsevier Ltd. All rights reserved.
3,1-Benzoxazin-4-ones, 3,1-benzothiazin-4-ones and N-arylcyanothioformamides
作者:Thierry Besson、Kumaraswamy Emayan、Charles W. Rees
DOI:10.1039/c39950001419
日期:——
Anthranilic acid and 4,5-dichloro-1,2,3-dithiazolium chloride 1 give the delicate dithiazoloimino carboxylic acid 8 which on mild thermolysis gives 2-cyano-3,1-benzoxazin-4-one 6 and with triphenylphosphine gives 2-cyano-3,1-benzothiazin-4-one 7, both quantitatively; in general N-aryliminodithiazoles 2 with triphenylphosphine give the corresponding cyanothioformanilides 3, providing a route to these compounds from anilines in two mild steps.
Besson, Thierry; Emayan, Kumaraswamy; Rees, Charles W., Journal of the Chemical Society. Perkin transactions I, 1995, # 17, p. 2097 - 2102
作者:Besson, Thierry、Emayan, Kumaraswamy、Rees, Charles W.
DOI:——
日期:——
Antimicrobial evaluation of 3,1-benzoxazin-4-ones, 3,1-benzothiazin-4-ones, 4-alkoxyquinazolin-2-carbonitriles and N-arylimino-1,2,3-dithiazoles
作者:Thierry Besson、Charles W. Rees、Gilles Cottenceau、Anne-Marie Pons
DOI:10.1016/0960-894x(96)00423-4
日期:1996.10
Novel 3,1-benzoxazinones, 3,1-benzothiazinones and 4-alkoxyquinazolines have been synthesized via N-aryl-1,2,3-dithiazoles derivatives. The antibacterial and antifungal activity of these compounds were measured; the dithiazoles are significantly active against fungi. Copyright (C) 1996 Elsevier Science Ltd
Synthesis of novel 1,3,4-benzotriazepine derivatives from 4-oxo-3,1-benzoxazine and 3,1-benzothiazine-2-carbonitriles
Synthesis of novel oxygen and sulfur containing 1,3,4-benzotriazepine derivatives was performed via 3,1-benz-oxazine and 3,1-benzothiazine intermediates obtained from Appel's salt chemistry. We observed that the sulfur containing precursors reacted differently than their oxygenated congeners and, after rearrangement, afforded novel heterocyclic compounds (e.g., benzoxazin-4-thione and 2-cyanoy 1,3,4-triazepine). (c) 2005 Elsevier Ltd. All rights reserved.