135127-81-0

Basic information

• Product Name: 2-methyl-8,9-diphenylpyrimido<4',5':4,5>thieno<2,3-c>pyridazin-4(3H)-one
• Synonyms: 2-methyl-8,9-diphenylpyrimido<4',5':4,5>thieno<2,3-c>pyridazin-4(3H)-one
• CAS NO: 135127-81-0
• Molecular Weight: 370.434
• Mol File: 135127-81-0.mol

Chemical Properties

• CAS DataBase Reference: 2-methyl-8,9-diphenylpyrimido<4',5':4,5>thieno<2,3-c>pyridazin-4(3H)-one(CAS DataBase Reference)
• NIST Chemistry Reference: 2-methyl-8,9-diphenylpyrimido<4',5':4,5>thieno<2,3-c>pyridazin-4(3H)-one(135127-81-0)
• EPA Substance Registry System: 2-methyl-8,9-diphenylpyrimido<4',5':4,5>thieno<2,3-c>pyridazin-4(3H)-one(135127-81-0)

Safety Data

• Hazardous Substances Data: 135127-81-0(Hazardous Substances Data)

Upstream product

• 135127-78-5 5-amino-3,4-diphenylthieno<2,3-c>pyridazine-6-carboxamide 
• 850075-65-9 ethyl 5-acetylamino-3,4-diphenylthieno[2,3-c]pyridazine-6-carboxylate 
• 94011-79-7 3-chloro-5,6-diphenylpyridazine-4-carbonitrile 
• 128462-42-0 ethyl 5-amino-3,4-diphenylthieno[2,3-c]pyridazine-6-carbohydrazide 
• 872057-83-5 2-methyl-8,9-diphenyl-4H-pyridazino[4',3':4,5]thieno[3,2-d]-1,3-oxazin-4-one 
• 850075-66-0 3-amino-2-methyl-3,4-dihydro-4-oxo-8,9-diphenylpyrimido[4',5':4,5]thieno[2,3-c]pyridazine 
• 135127-80-9 5-acetylamino-3,4-diphenylthieno<2,3-c>pyridazin-6-carboxamide 
• 112450-34-7 4-cyano-5,6-diphenylpyridazine-3 (2H)-thione 

Relevant articles and documents

Pyridazine derivatives and related compounds, part 21: Synthesis of different heterocycles from 2-methyl-4H-pyridazino[4′,3′:4,5] thieno[3,2-d]-1,3-oxazin-4-one

Starting with ethyl 5-amino-3,4-diphenylthieno[2,3-c]pyridazine-6-carboxyl- ate, the syntheses of 2-methyl-8,9-diphenyl-4H-pyridazino[4′,3′:4,5] thieno[3,2-d]-1,3-oxazin-4-one (1), 7-amino-6-methyl-8-oxo-3,4-diphenyl-7,8- dihydropyrimido-[4′,5′:4,5]thieno

Pyridazine derivatives and related compounds. Part 11: 1Synthesis of some pyrimido[4′,5′:4,5]thieno[2,3-c] pyridazines

3-Substituted pyrimido[4′,5′:4,5]thieno[2,3-c/pyridazine-2,4- di-ones and 3-amino-2-methylpyrimido[4′,5′:4,5]thieno[2,3-c] pyridazine-4-ones were synthesized starting from ethyl 5-aminothieno[2,3-c] pyridazine-6-carboxylate 1. Reaction of amino ester 1 with phenyl isothiocyanate affords thiourea derivative 10 which undergo further transformation to the related fused heterocyclic systems.

Pyridazine Derivatives and Related Compounds, Part 3. Some Reactions with 4-Cyano-3(2H)-pyridazinethione

The reaction of 5-amino-3,4-diphenylthienopyridazine-6-carboxamide 2 with formamide, acetic anhydride and carbon disulphide yielded pyrimidothienopyridazine-4-one derivatives.Pyrimidopyridazinethione and dithione derivative