Process for preparing benzoxazines

Details Process for preparing benzoxazines Process for preparing benzoxazines

1975-02-20

1976-11-02

Meyers, Albert T.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07D26500, C07D27300, C07D29500

Patent

active

039896986

ABSTRACT:
This invention relates to a process for preparing benzoxazines and more particularly 2-substituted-4H-3,1-benzoxazine-4-ones, obtained by reacting at least at about room temperature in the presence of an effective amount of a tertiary amine an isatoic anhydride with an acylating compound consisting of either a carboxylic acid anhydride or an acyl halide.

REFERENCES:
patent: 3531509 (1970-09-01), Sayigh et al.
Chem. Abst. 65 15371(d), (1966), Bolotin et al., "Synthesis and Optical . . . ."

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