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|Title:||Microwave-mediated synthesis of some novel heterocycles containing thiazole, oxazole, thiazine, oxazine, thiadiazine and triazolo-thiadiazine moiety|
|Authors:||Dabholkar, Vijay V|
Mishra, Sushil Kumar J
|Series/Report no.:||Int. Cl.8 C07D|
|Abstract:||5,5-Dimethyl cyclohexane-1,3-dione 1 has been brominated to yield 2-bromo-5,5-dimethyl cyclohexane-1,3-dione 2 which on further reaction with substituted thiocarbamides, carbamides, 2-aminothiophenols, 2-aminophenol, thiocarbohydrazones, thiosemicarbazones and triazoles has furnished 2-substituted imino-5,5-dimethyl-2,3,5,6 -tetrahydro-4H-benzothiazol-7-one 3, 2-substituted imino-5,5-dimethyl-2,3,5,6-tetrahydro-4H-benzoxazol-7-one 4, 7-substituted-2,2-dimethyl-2,3-dihydro-1H,10H -phenothiazin-4-one 5, 2,2-dimethyl-2,3-dihydro-1H,10H-phenoxazin-4-one 6, Schiff base of 2-hydrazino-6,6-dimethyl-6,7-dihydro-4H,5H-benzo[1,3,4]thiadiazine-8-one 7, Schiff base of 2-amino-6,6-dimethyl-6,7-dihydro-4H,5H-benzo[1,3,4] thiadiazin-8-one 8 and 3-substituted alkyl-7,7-dimethyl-7,8-dihydro-5H,6H-1,2,4-triazolo[3,4-b][1,3,4]benzothiadiazin-9-one 9 respectively. All the final compounds have been synthesized by microwave irradiation as well as by conventional method.|
|Appears in Collections:||IJC-B Vol.45B(09) [September 2006]|
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