Dedicated to Professor Herbert C. Brown on the occasion of his 90 th birthday.Potentially bioactive 2H-1,4-benzoxazine derivatives could be conveniently prepared in one step from the corresponding nitroketones using 10% palladium on carbon with triethylamine in the presence of hydrogen (Pd/C-TEA-H 2 ) system. Several other tertiary amines such as nicotine, pyridine, and quinoline also could be used, but TEA gave the best results.
Dedicated to Professor Herbert C. Brown on the occasion of his 90th birthday.
Potentially bioactive 2H‐1,4‐benzoxazine derivatives could be conveniently prepared in one step from the corresponding nitroketones using 10% palladium on carbon with triethylamine in the presence of hydrogen (Pd/C‐TEA‐H2) system. Several other tertiary amines such as nicotine, pyridine, and quinoline also could be used, but TEA gave the best results.
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