84831-41-4

Upstream product

• 108-24-7 acetic anhydride 
• 84831-38-9 3,4-dihydro-4-methyl-2H-1,4-benzoxazin-2-carbonitril 
• 937-14-4 3-chloro-benzenecarboperoxoic acid 

Relevant academic research and scientific papers

Studies on the Chemistry of 1,4-Oxazines, 16. - Investigations on the Nucleophilic Substitution of 3,4-Dihydro-2H-1,4-benzoxazine-2-carboxylic Acid Derivatives under Varied Conditions of the Polonovski Reaction

Oxidation of the dihydrobenzoxazine-2-carboxylic acid derivatives 1,2,10, and 11 with 3-chloroperbenzoic acid and subsequent reaction with acetic anhydride lead to the expected dehydration products as well as the C-6-substituted compounds 6,7,9, and 14-16.Under various reaction temperatures and pH values characteristic mixtures of products are obtained.