86267-87-0

Upstream product

• 95-55-6 2-amino-phenol 
• 35017-54-0 ethyl 4-tosyl-3,4-dihydro-2H-1,4-benzoxazine-2-carboxylate 
• 3897-39-0 N-(2-hydroxy-phenyl)-toluene-4-sulfonamide 
• 920-37-6 2-Chloroacrylonitrile 
• 86267-86-9 3,4-dihydro-2H-1,4-benzoxazine-2-carbonitrile 
• 98-59-9 p-toluenesulfonyl chloride 

Downstream Products

• 96988-60-2 2-(2-imidazolinyl)-4-tosyl-3,4-dihydro-2H-1,4-benzoxazine hydrochloride 

Relevant academic research and scientific papers

Zur Synthese von 3,4-Dihydro-2H-1,4-benzoxazin-2- und 3-carbonitrilen. 11. Mitteilung ueber Studien zur Chemie der 1,4-Oxazine

Reaction of o-aminophenols 1a, 1b and 1c with alkyl dibromopropionates selectively leads to 2-substituted dihydro-1,4-benzoxazines.This high regioselectivity is explained by initial elimination of hydrogen bromide from the dibromopropionate to form a reac