3-bromo-6-methyl-6-(3-nitrophenyl)-6,7-dihydropyrazolo[1,5-a]pyrazin-4(5H)-one

Base Information

Chemical Name:3-bromo-6-methyl-6-(3-nitrophenyl)-6,7-dihydropyrazolo[1,5-a]pyrazin-4(5H)-one
CAS No.:1397683-40-7
Molecular Formula:C₁₃H₁₁BrN₄O₃
Molecular Weight:351.159
Hs Code.:

Synonyms:3-bromo-6-methyl-6-(3-nitrophenyl)-6,7-dihydropyrazolo[1,5-a]pyrazin-4(5H)-one

Suppliers and Price of 3-bromo-6-methyl-6-(3-nitrophenyl)-6,7-dihydropyrazolo[1,5-a]pyrazin-4(5H)-one

Supply Marketing:

Business phase:: The product has achieved commercial mass production^*data from LookChem market partment

Manufacturers and distributors:

Manufacture/Brand
Chemicals and raw materials
Packaging
price

Total 0 raw suppliers

Chemical Property of 3-bromo-6-methyl-6-(3-nitrophenyl)-6,7-dihydropyrazolo[1,5-a]pyrazin-4(5H)-one

Chemical Property:

Purity/Quality:

Safty Information:

Pictogram(s):
Hazard Codes:

MSDS Files:

Useful:

Technology Process of 3-bromo-6-methyl-6-(3-nitrophenyl)-6,7-dihydropyrazolo[1,5-a]pyrazin-4(5H)-one

There total 8 articles about 3-bromo-6-methyl-6-(3-nitrophenyl)-6,7-dihydropyrazolo[1,5-a]pyrazin-4(5H)-one 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: 87.0%

: 1397683-47-4
ethyl 4-bromo-1-(2-((tert-butoxycarbonyl)amino)-2-(3-nitrophenyl)propyl)-1H-pyrazole-5-carboxylate

: 1397683-40-7
3-bromo-6-methyl-6-(3-nitrophenyl)-6,7-dihydropyrazolo[1,5-a]pyrazin-4(5H)-one

Guidance literature:: ethyl 4-bromo-1-(2-((tert-butoxycarbonyl)amino)-2-(3-nitrophenyl)propyl)-1H-pyrazole-5-carboxylate; With trifluoroacetic acid; In dichloromethane; at 20 ℃; for 3h;

With potassium acetate; In ethanol; dichloromethane; for 4h; Reflux;

With hydrogenchloride; In water; pH=3;

Reference yield: 19.0%

: 1397683-38-3
rac-4-bromo-2-[2-tert-butoxycarbonylamino-2-(3-nitro-phenyl)-propyl]-2H-pyrazole-3-carboxylic acid

: 1397683-40-7
3-bromo-6-methyl-6-(3-nitrophenyl)-6,7-dihydropyrazolo[1,5-a]pyrazin-4(5H)-one

Guidance literature:: rac-4-bromo-2-[2-tert-butoxycarbonylamino-2-(3-nitro-phenyl)-propyl]-2H-pyrazole-3-carboxylic acid; With trifluoroacetic acid; In dichloromethane; at 20 ℃; for 2h;

With potassium acetate; In ethanol; dichloromethane; at 90 ℃; for 3h;

With hydrogenchloride; In water;

Reference yield:

: 1397683-35-0
t-butyl (1-(4-bromo-1H-pyrazol-1-yl)-2-(3-nitrophenyl)propan-2-yl)carbamate

: 1397683-40-7
3-bromo-6-methyl-6-(3-nitrophenyl)-6,7-dihydropyrazolo[1,5-a]pyrazin-4(5H)-one

Guidance literature:: Multi-step reaction with 2 steps

1.1: lithium diisopropyl amide / n-heptane; tetrahydrofuran / 1 h / -78 °C

1.2: 2 h / 20 °C

2.1: trifluoroacetic acid / dichloromethane / 2 h / 20 °C

2.2: 3 h / 90 °C

With trifluoroacetic acid; lithium diisopropyl amide; In tetrahydrofuran; n-heptane; dichloromethane;