One-Pot Synthesis of 4-Methoxy(aralkoxy)imino-areno[1,3]oxazin-2-ones

Abstract

Stepwise treatment of ortho-hydroxy-arenonitriles with 1,1′-carbonyl-di-(1,2,4-triazole) and O-substituted hydroxylamines in the presence of Et₃N gave 4-methoxy(aralkoxy)imino-benzo[1,3]oxazin-2-ones and 4-methoxy(aralkoxy)imino-naphtho[2,3-e][1,3]oxazin-2-ones.

heterocycles - Dimroth rearrangement - ring closure - base-catalyzed - 4-methoxy(aralkoxy)-imino-areno[1,3]oxazin-2-ones

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Crystallographic data for compound 5e has been deposited with the Cambridge Crystallographic Data Centre as supplementary publication number CCDC 232844. Copies of the data can be obtained, free of charge, on application to CCDC, 12 Union Road, Cambridge, CB2 1EZ, UK [fax: [phone] or e-mail: [e-mail]].