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H3PW12O40catalyzed synthesis of benzoxazine and quinazoline in aqueous media

Authors
Journal
Chinese Journal of Catalysis
1872-2067
Publisher
Elsevier
Volume
35
Issue
1
Identifiers
DOI: 10.1016/s1872-2067(12)60706-2
Keywords
  • Heteropoly Acid
  • 1
  • 3-Benzoxazine-4-One
  • 2-Substituted-Quinazolin-4(3H)-One
  • 2-Substituted-2
  • 3-Dihydroquinazolin-4(1H)-One

Abstract

Abstract A heteropolyacid efficiently catalyzed the cyclocondensation reaction of 2-aminobenzamide and salicylamide with aldehydes and ketones to afford good yields of benzoxazine and quinazoline ring systems in an aqueous medium. The method gives clean reactions, has simple workup procedure, and uses environment friendly conditions.

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