Tetrahedron p. 9669 - 9678 (1997)
Update date:2022-08-16
Topics:
Lokshin, Vladimir
Samat, Andre
Guglielmetti, Robert
A synthetic access to photochromic spirooxazines is developed through the condensation of methylene-substituted azaheterocycles on 1-amino-2- naphthols in presence of an oxidizing agent. Compared to usual preparation of this kind of compounds (via 1-nitroso-2-naphthols), yields are generally good and approaches to further spiroheterocyclic oxazines are possible.
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