835896-29-2

Upstream product

• 110-91-8 morpholine 
• 833437-35-7 C₁₄H₁₃BrN₂O₃ 
• 122-51-0 orthoformic acid triethyl ester 

Downstream Products

• 1112111-23-5 5-(4-bromophenyl)-1,3-dimethyl-2,4-dioxo-1,2,3,4-tetrahydropyrano[4,3-d]pyrimidin-6-ium perchlorate 
• 1112111-49-5 6-amino-5-(4-bromophenyl)-1,3-dimethyl-2,4-dioxo-1,2,3,4-tetrahydropyrido[4,3-d]pyrimidin-6-ium perchlorate 

Relevant academic research and scientific papers

Pyrano[4,3-d]pyrimidinium salts : 22. Reactions of 1,3-dimethyl-2,4- dioxopyrano[4,3-d]pyrimidinium salts with hydrazine

Reactions of 5-aryl- and 5,7-diaryl-1,3-dimethyl-2,4-dioxopyrano[4,3-d] pyrimidinium salts with hydrazine were studied. In the former case, the reaction products were the 6-amino-1,3-dimethyl-2,4-dioxopyrido[4,3-d]pyrimidinium salts. 5,7-Diarylpyrano[4,3-d]pyrimidinium salts were transformed into either the corresponding pyridinium salts or 1H-pyrimido-[5,4-d][1,2]diazepine-2,4(3H, 9H)-diones, depending on the hydrazine concentration and the reaction time.