Abstract
Acetylation of 5,6-dihydro-4H -1,2-oxazines with an acetyl bromide/acetic anhydride mixture provides a general and quite simple procedure for the synthesis of N -acetyl-5,6-dihydro-2H -1,2-oxazines.
Key words
1,2-oxazines - acylations - cycloadditions - γ-amino acids - hydroxylamines
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