249646-78-4

Upstream product

• 85168-01-0 6,8-dimethylpyrimido<4,5-c>-pyridazine-5,7(6H,8H)-dione 
• 85168-03-2 3-chloro-6,8-dimethylpyrimido[4,5-c]pyridazine-5,7(6H,8H)-dione 
• 100-46-9 benzylamine 

Downstream Products

• 875812-03-6 7-benzyl-2,4-dimethyl-7,8,9,10,11,12-hexahydrocyclohepta[4,5]pyrrolo[2,3-c]pyrimido[5,4-e]pyridazine-1,3(2H,4H)-dione 

Relevant academic research and scientific papers

Purines, pyrimidines, and fused systems based on them 16. Oxidative animation of 6,8-dimethylpyrimido[4,5-c]pyridazine-5,7(6H,8H)-dione

6,8-Dimethylpyrimido[4,5-c)pyridazine-5,7(6H,8H)-dione reacts with ammonia or primary amines in the presence of an oxidant to give the corresponding 4-amino derivatives. Reactions with secondary amines (dimethylamine, piperidine, or morpholine) proceed wi

Purines, pyrimidines, and condensed systems based on them. 18. Reaction of 6,8-dimethylpyrimido-14,5-c]pyridazine-5,7(6H,8H)-dione N(2)-oxide with alkylamines

Heating 6,8-dimethylpyrimido[4,5-c]pyridazine-5,7(6H,8H)-dione N(2)-oxide (2) with piperidine or morpholine gave a moderate yield of 3-piperidino- and 3-morpholino-6,8-dimethylpyrimido[4,5-c]-pyridazine-5,7(6H,8H)-diones (3a,b). Reaction of N-o