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Ionic liquid catalyzed multicomponent synthesis of 3,4-dihydro-3-substituted-2H-naphtho[2,1-e][1,3]oxazine derivatives

Original Article

JOURNAL 160

Organic Communications
VOLUME & ISSUE
Year: 2010 Issue: 1 January-March
PAGES
p.1 - 7
STATISTICS
Viewed 1918 times.
AUTHORS
    Amol H. Kategaonkar, Swapnil S. Sonar, Kiran F. Shelke, Bapurao B. Shingate and Murlidhar S. Shingare
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GRAPHICAL ABSTRACT

ABSTRACT

An efficient and novel one-pot synthesis of 3,4-dihydro-3-substituted-2H-naphtho[2,1-e][1,3]oxazine derivatives from 1-naphthol, various anilines and formalin at room temperature stirring. The six-membered N,O-heterocyclic skeleton was constructed via 1-benzyl-3-methyl imidazolium hydrogen sulphate [bnmim] [HSO4] promoted Mannich type reaction.

 KEYWORDS
  • 1
  • 3-oxazines
  • ionic liquid
  • Mannich type reaction
  • multicomponent reaction