N,5-dimethyl-3-oxo-4-[3-(trifluoromethyl)phenyl]-3,4-dihydropyrazine-2-carboxamide

Base Information

• Chemical Name: N,5-dimethyl-3-oxo-4-[3-(trifluoromethyl)phenyl]-3,4-dihydropyrazine-2-carboxamide
• CAS No.: 956907-69-0
• Molecular Formula: C₁₄H₁₂F₃N₃O₂
• Molecular Weight: 311.263
• Mol file: 956907-69-0.mol

Synonyms:N,5-dimethyl-3-oxo-4-[3-(trifluoromethyl)phenyl]-3,4-dihydropyrazine-2-carboxamide

Chemical Property of N,5-dimethyl-3-oxo-4-[3-(trifluoromethyl)phenyl]-3,4-dihydropyrazine-2-carboxamide

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of N,5-dimethyl-3-oxo-4-[3-(trifluoromethyl)phenyl]-3,4-dihydropyrazine-2-carboxamide

There total 7 articles about N,5-dimethyl-3-oxo-4-[3-(trifluoromethyl)phenyl]-3,4-dihydropyrazine-2-carboxamide 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-Methyl-3-oxo-4-(3-trifluoromethyl-phenyl)-3,4-dihydro-pyrazine-2-carboxylic acid methyl ester (956907-37-2) + methylamine (74-89-5) → N,5-dimethyl-3-oxo-4-[3-(trifluoromethyl)phenyl]-3,4-dihydropyrazine-2-carboxamide (956907-69-0)

Guidance literature:

In ethanol; at 50 ℃; for 0.5h; Sealed vial;

Reference yield:

3-bromo-6-methyl-1-[3-(trifluoromethyl)phenyl]pyrazin-2(1H)-one (956907-59-8) → N,5-dimethyl-3-oxo-4-[3-(trifluoromethyl)phenyl]-3,4-dihydropyrazine-2-carboxamide (956907-69-0)

Guidance literature:

Multi-step reaction with 2 steps

1: triethylamine / palladium diacetate; triphenylphosphine / 4 h / 90 °C / 4560.31 Torr

2: ethanol / 0.5 h / 50 °C / Sealed vial

With triethylamine; palladium diacetate; triphenylphosphine; In ethanol;

Reference yield:

N-(2-oxopropyl)-N'-[3-(trifluoromethyl)-phenyl]ethanediamide (956907-63-4) → N,5-dimethyl-3-oxo-4-[3-(trifluoromethyl)phenyl]-3,4-dihydropyrazine-2-carboxamide (956907-69-0)

Guidance literature:

Multi-step reaction with 4 steps

1.1: sulfuric acid / acetic acid / 3 h / 100 °C / Sealed vial

1.2: pH 6 - 7

2.1: Oxalyl bromide / N,N-dimethyl-formamide / 1,2-dichloro-ethane / sealed vial

3.1: triethylamine / palladium diacetate; triphenylphosphine / 4 h / 90 °C / 4560.31 Torr

4.1: ethanol / 0.5 h / 50 °C / Sealed vial

With Oxalyl bromide; triethylamine; palladium diacetate; sulfuric acid; N,N-dimethyl-formamide; triphenylphosphine; In ethanol; acetic acid; 1,2-dichloro-ethane;

upstream raw materials:

5-Methyl-3-oxo-4-(3-trifluoromethyl-phenyl)-3,4-dihydro-pyrazine-2-carboxylic acid methyl ester

methylamine

3-bromo-6-methyl-1-[3-(trifluoromethyl)phenyl]pyrazin-2(1H)-one

6-methyl-1-[3-(trifluoromethyl)phenyl]-1,4-dihydropyrazine-2,3-dione

Downstream raw materials:

6-bromo-N,5-dimethyl-3-oxo-4-[3-(trifluoromethyl)phenyl]-3,4-dihydropyrazine-2-carboxamide