7-amino-1,4-bis(4-chlorophenyl)-5,6,8,9,10,11-hexahydro-5,9,11-trioxopyrazolo-[1,2-a]pyrido[3,4-d]pyridazine-3-carbonitrile

Base Information

• Chemical Name: 7-amino-1,4-bis(4-chlorophenyl)-5,6,8,9,10,11-hexahydro-5,9,11-trioxopyrazolo-[1,2-a]pyrido[3,4-d]pyridazine-3-carbonitrile
• CAS No.: 871950-19-5
• Molecular Formula: C₂₃H₁₁Cl₂N₅O₃
• Molecular Weight: 476.278
• Mol file: 871950-19-5.mol

Synonyms:

Chemical Property of 7-amino-1,4-bis(4-chlorophenyl)-5,6,8,9,10,11-hexahydro-5,9,11-trioxopyrazolo-[1,2-a]pyrido[3,4-d]pyridazine-3-carbonitrile

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of 7-amino-1,4-bis(4-chlorophenyl)-5,6,8,9,10,11-hexahydro-5,9,11-trioxopyrazolo-[1,2-a]pyrido[3,4-d]pyridazine-3-carbonitrile

There total 4 articles about 7-amino-1,4-bis(4-chlorophenyl)-5,6,8,9,10,11-hexahydro-5,9,11-trioxopyrazolo-[1,2-a]pyrido[3,4-d]pyridazine-3-carbonitrile 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: 73.0%

5,8-di(4-chlorophenyl)-1,4-dioxo-1,2,3,4-tetrahydropyrido[3,4-d]pyridazine-3-carbonitrile (871950-17-3) + ethyl 2-cyanoacetate (105-56-6) → 7-amino-1,4-bis(4-chlorophenyl)-5,6,8,9,10,11-hexahydro-5,9,11-trioxopyrazolo-[1,2-a]pyrido[3,4-d]pyridazine-3-carbonitrile (871950-19-5)

Guidance literature:

With triethylamine; In ethanol; N,N-dimethyl-formamide; for 3h; Heating;

DOI:10.1515/HC.2005.11.1.89

Reference yield:

2,3-di(4-chlorobenzal)aminoacetonitrile (871950-22-0) → 7-amino-1,4-bis(4-chlorophenyl)-5,6,8,9,10,11-hexahydro-5,9,11-trioxopyrazolo-[1,2-a]pyrido[3,4-d]pyridazine-3-carbonitrile (871950-19-5)

Guidance literature:

Multi-step reaction with 3 steps

1: 63 percent / dioxane / 3 h / Heating

2: 71 percent / NH₂-NH₂*H₂O / ethanol / 3 h / Heating

3: 73 percent / Et₃N / dimethylformamide; ethanol / 3 h / Heating

With hydrazine hydrate; triethylamine; In 1,4-dioxane; ethanol; N,N-dimethyl-formamide;

DOI:10.1515/HC.2005.11.1.89

Reference yield:

dimethyl 2,5-di(4-chlorophenyl)-6-cyanopyridine-3,4-dicarboxylate (871950-16-2) → 7-amino-1,4-bis(4-chlorophenyl)-5,6,8,9,10,11-hexahydro-5,9,11-trioxopyrazolo-[1,2-a]pyrido[3,4-d]pyridazine-3-carbonitrile (871950-19-5)

Guidance literature:

Multi-step reaction with 2 steps

1: 71 percent / NH₂-NH₂*H₂O / ethanol / 3 h / Heating

2: 73 percent / Et₃N / dimethylformamide; ethanol / 3 h / Heating

With hydrazine hydrate; triethylamine; In ethanol; N,N-dimethyl-formamide;

DOI:10.1515/HC.2005.11.1.89

upstream raw materials:

5,8-di(4-chlorophenyl)-1,4-dioxo-1,2,3,4-tetrahydropyrido[3,4-d]pyridazine-3-carbonitrile

ethyl 2-cyanoacetate

2,3-di(4-chlorobenzal)aminoacetonitrile

dimethyl 2,5-di(4-chlorophenyl)-6-cyanopyridine-3,4-dicarboxylate