2-(2-bromo-4,5-dimethoxy-phenyl)-1-[3-(4-methylamino-phenyl)-4,5-dihydro-pyrazol-1-yl]-ethanone

Base Information

Chemical Name:2-(2-bromo-4,5-dimethoxy-phenyl)-1-[3-(4-methylamino-phenyl)-4,5-dihydro-pyrazol-1-yl]-ethanone
CAS No.:1076690-72-6
Molecular Formula:C₂₀H₂₂BrN₃O₃
Molecular Weight:432.317
Hs Code.:

Synonyms:2-(2-bromo-4,5-dimethoxy-phenyl)-1-[3-(4-methylamino-phenyl)-4,5-dihydro-pyrazol-1-yl]-ethanone

Suppliers and Price of 2-(2-bromo-4,5-dimethoxy-phenyl)-1-[3-(4-methylamino-phenyl)-4,5-dihydro-pyrazol-1-yl]-ethanone

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 2-(2-bromo-4,5-dimethoxy-phenyl)-1-[3-(4-methylamino-phenyl)-4,5-dihydro-pyrazol-1-yl]-ethanone

Chemical Property:

Purity/Quality:

Safty Information:

Pictogram(s):
Hazard Codes:

MSDS Files:

Useful:

Technology Process of 2-(2-bromo-4,5-dimethoxy-phenyl)-1-[3-(4-methylamino-phenyl)-4,5-dihydro-pyrazol-1-yl]-ethanone

There total 5 articles about 2-(2-bromo-4,5-dimethoxy-phenyl)-1-[3-(4-methylamino-phenyl)-4,5-dihydro-pyrazol-1-yl]-ethanone 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: 46.0%

: 1076690-99-7
N-[4-(4,5-dihydro-1H-pyrazol-3-yl)-phenyl]-2,2,2-trifluoro-N-methyl-acetamide hydrochloride

: 1076690-72-6
2-(2-bromo-4,5-dimethoxy-phenyl)-1-[3-(4-methylamino-phenyl)-4,5-dihydro-pyrazol-1-yl]-ethanone

Guidance literature:: N-[4-(4,5-dihydro-1H-pyrazol-3-yl)-phenyl]-2,2,2-trifluoro-N-methyl-acetamide hydrochloride; With triethylamine; HATU; In N,N-dimethyl-formamide; at 20 ℃; for 2h;

With sodium hydroxide; In methanol; water; at 20 ℃; for 3h;

Reference yield:

: 1076690-81-7
3-(4-nitro-phenyl)-4,5-dihydro-pyrazole-1-carboxylic acid tert-butyl ester

: 1076690-72-6
2-(2-bromo-4,5-dimethoxy-phenyl)-1-[3-(4-methylamino-phenyl)-4,5-dihydro-pyrazol-1-yl]-ethanone

Guidance literature:: Multi-step reaction with 5 steps

1.1: hydrogen / palladium 10% on activated carbon / methanol / 17 h / 20 °C

2.1: sodium hydride / methanol / 5 h

2.2: 1 h / Heating / reflux

2.3: 18 h

3.1: pyridine / 18 h / 20 °C

4.1: hydrogenchloride / methanol / 1 h / 60 °C

5.1: triethylamine; HATU / N,N-dimethyl-formamide / 2 h / 20 °C

5.2: 3 h / 20 °C

With pyridine; hydrogenchloride; hydrogen; sodium hydride; triethylamine; HATU; palladium 10% on activated carbon; In methanol; N,N-dimethyl-formamide;

Reference yield:

: 103753-04-4
3-(4-nitro-phenyl)-4,5-dihydro-1H-pyrazole

: 1076690-72-6
2-(2-bromo-4,5-dimethoxy-phenyl)-1-[3-(4-methylamino-phenyl)-4,5-dihydro-pyrazol-1-yl]-ethanone

Guidance literature:: Multi-step reaction with 6 steps

1.1: dmap / tetrahydrofuran / 2 h / 80 °C

2.1: hydrogen / palladium 10% on activated carbon / methanol / 17 h / 20 °C

3.1: sodium hydride / methanol / 5 h

3.2: 1 h / Heating / reflux

3.3: 18 h

4.1: pyridine / 18 h / 20 °C

5.1: hydrogenchloride / methanol / 1 h / 60 °C

6.1: triethylamine; HATU / N,N-dimethyl-formamide / 2 h / 20 °C

6.2: 3 h / 20 °C

With pyridine; hydrogenchloride; dmap; hydrogen; sodium hydride; triethylamine; HATU; palladium 10% on activated carbon; In tetrahydrofuran; methanol; N,N-dimethyl-formamide;