92000-81-2Relevant academic research and scientific papers
Triazines and Related Products. Part 27. Thermolysis of 4-Anilino-1,2,3-benzotriazines
Baig, Ghouse Unissa,Stevens, Malcolm F. G.,Vaughan, Keith
, p. 999 - 1003 (2007/10/02)
Thermolysis of 4-(4-cyanoanilino)-1,2,3-benzotriazine (1a) in morpholine affords 3--4-(4-cyanophenylimino)-3,4-dihydro-1,2,3-benzotriazole (3a) in addition to the major product 2-amino-N2-(4-cyanophenyl)-N
Triazines and Related Products. Part 28. Conversion of 3-Aryl-1-(2-cyanophenyl)triazenes into 3-Arylquinazolin-4(3H)-ones with Formamide
Baig, Ghouse Unissa,Stevens, Malcolm F. G.
, p. 2765 - 2766 (2007/10/02)
The thermolysis of 4-anilino-1,2,3-benzotriazines and their precursor 3-aryl-1-(2-cyanophenyl)triazenes in hot formamide to give 3-arylquinazolin-4(3H)-ones in high yield is described.The reaction cannot be extended to the preparation of 2-alkyl-3-arylquinazolinones.In hot acetamide-diglyme 4-(4-nitroanilino)-1,2,3-benzotriazine (5c) gives a high yield of the 3-substituted 4-(4-nitrophenylimino)-3,4-dihydro-1,2,3-benzotriazine (11c).
