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Title: Synthesis and behaviour of 2-carboxyvinyl-6,8-dibromo-4H-3,1-benzoxazin-4-one towards nitrogen, carbon and sulphur nucleophiles
Authors: EI-Hashash, M A
Abdel-Rahman, T M
EI-Badry, Y A
Keywords: 4H-3;1-benzoxazinone;Quinazolinone;Pyrimidindione
Issue Date: Jun-2006
Publisher: NISCAIR-CSIR, India
IPC Code: Int.CI.8 C07D
Abstract: 6,8-dibromo-4H-3,l-benzoxazinone 2 is synthesized and allowed to react with some nitrogen nucleophiles namely, p-toluidine, hydroxylamine hydrochloride, ethanolamine, and glycine and affords 3-substituted quinazolinones 3-6, while with isobutylamine and benzylamine results benzamidederivatives 7,8. Compound 4 is subjected to acylation and alkylation and produces 9-11 respectively. Alkylation of compound 5 with 2-naphthol and benzamide yields 12,13. Treatment of benzoxazinone 2 with o-phenylenediamine in different solvents under different conditions affords the substituted benzamide 14 and 3-substitutedquinazolinone 15.
Page(s): 1470-1477
ISSN: 0042-6075
Appears in Collections:IJC-B Vol.45B(06) [June 2006]

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