New routes to 1-functionally substituted arylbenzotriazoles: 3-benzotriazol-1-yl-pyridazine-4-ones, 5-benzotriazol-1-yl-pyridazine-ones and 5-benzotriazol-1-yl-pyridazine-6-imines
F. Al-omran et al., New routes to 1-functionally substituted arylbenzotriazoles: 3-benzotriazol-1-yl-pyridazine-4-ones, 5-benzotriazol-1-yl-pyridazine-ones and 5-benzotriazol-1-yl-pyridazine-6-imines, J HETERO CH, 37(1), 2000, pp. 167-170
Condensation of 1-arylhydrazono-1-benzotriazol-1-yl 2-propanones (5a-c) wit
h DMF DMA afforded 1-aryl-3-benzotriazol-1-yl-1,4-dihydropyridazine-4-ones
(8a-c). While condensation of 1-functionally substituted methylbenzotriazol
es 3b,c with 2-arylhydrazono-3-oxoarylpropanal 13a,b give 3-aroyl-5-(benzor
riazolyl-1-yl)-1,6-dihydro-1-phenylpyridazine-6-ones and 6-imines 14a-d.