150348-51-9

Upstream product

• 211630-02-3 8-phenyl-pyrido[2,3-d][1,2]oxazin-5-one 
• 147779-25-7 2-benzoyl-3-pyridine carboxylic acid 
• 108-86-1 bromobenzene 
• 699-98-9 Pyridine-2,3-dicarboxylic anhydride 
• 23439-87-4 6-hydroxy-5H-pyrrolo[3,4-b]pyridine-5,7-(6H)-dione 
• 71-43-2 benzene 

Downstream Products

• 590409-11-3 6-methoxymethyl-8-phenylpyrido[2,3-d]pyridazin-5(6H)-one 
• 590403-98-8 8-phenyl-2,3,4,6-tetrahydropyrido[2,3-d]pyridazin-5(1H)-one 
• 211630-17-0 (8-phenyl-pyrido[2,3-d]pyridazin-5-yl)-hydrazine 
• 211630-12-5 5-chloro-8-phenylpyrido[2,3-d]pyridazine 

Relevant academic research and scientific papers

New synthesis of pyrido[2,3-d] and [3,2-d]oxazines

N-Hydroxyquinolinimide 1 reacts with each of aromatic arnines, hydrazine hydrate and aromatic hydrocarbons to give arylcarbamoyl pyridines 2, pyrrolopyridines 3, pyridopyridazines 4 and pyridooxazinones 5 and 6. The heterocycles 5 and 6 can be transformed