3-amino-2-methyl-3,4-dihydro-4-oxo-8,9-diphenylpyrimido[4',5':4,5]thieno[2,3-c]pyridazine

Base Information

Chemical Name:3-amino-2-methyl-3,4-dihydro-4-oxo-8,9-diphenylpyrimido[4',5':4,5]thieno[2,3-c]pyridazine
CAS No.:850075-66-0
Molecular Formula:C₂₁H₁₅N₅OS
Molecular Weight:385.449
Hs Code.:

Synonyms:3-amino-2-methyl-3,4-dihydro-4-oxo-8,9-diphenylpyrimido[4',5':4,5]thieno[2,3-c]pyridazine

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Chemical Property of 3-amino-2-methyl-3,4-dihydro-4-oxo-8,9-diphenylpyrimido[4',5':4,5]thieno[2,3-c]pyridazine

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Technology Process of 3-amino-2-methyl-3,4-dihydro-4-oxo-8,9-diphenylpyrimido[4',5':4,5]thieno[2,3-c]pyridazine

There total 4 articles about 3-amino-2-methyl-3,4-dihydro-4-oxo-8,9-diphenylpyrimido[4',5':4,5]thieno[2,3-c]pyridazine which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 40.0%

: 850075-65-9
ethyl 5-acetylamino-3,4-diphenylthieno[2,3-c]pyridazine-6-carboxylate

: 325170-33-0
3-amino-4,5-diphenylthieno[2,3-c]pyridazine-2-carbohydrazide

: 850075-66-0
3-amino-2-methyl-3,4-dihydro-4-oxo-8,9-diphenylpyrimido[4',5':4,5]thieno[2,3-c]pyridazine

Guidance literature:: With hydrazine hydrate; In ethanol; for 2h; Heating;
DOI:10.1080/10426500490475175

Reference yield:

: 128462-42-0
ethyl 5-amino-3,4-diphenylthieno[2,3-c]pyridazine-6-carbohydrazide

: 850075-66-0
3-amino-2-methyl-3,4-dihydro-4-oxo-8,9-diphenylpyrimido[4',5':4,5]thieno[2,3-c]pyridazine

Guidance literature:: Multi-step reaction with 2 steps

1.1: sodium hydroxide / ethanol / 2 h / Heating

1.2: 60.6 percent / 2 h / Heating

2.1: 0.4 g / hydrazine hydrate / ethanol / 0.5 h / Heating

With sodium hydroxide; hydrazine hydrate; In ethanol;
DOI:10.1080/104265090968451