5-[bis(2-methyl-benzoyl)-amino]-1-methyl-1H-pyrazole-4-carboxylic acid ethyl ester

Base Information

• Chemical Name: 5-[bis(2-methyl-benzoyl)-amino]-1-methyl-1H-pyrazole-4-carboxylic acid ethyl ester
• CAS No.: 271778-18-8
• Molecular Formula: C₂₃H₂₃N₃O₄
• Molecular Weight: 405.453
• Mol file: 271778-18-8.mol

Synonyms:5-[bis(2-methyl-benzoyl)-amino]-1-methyl-1H-pyrazole-4-carboxylic acid ethyl ester

Chemical Property of 5-[bis(2-methyl-benzoyl)-amino]-1-methyl-1H-pyrazole-4-carboxylic acid ethyl ester

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of 5-[bis(2-methyl-benzoyl)-amino]-1-methyl-1H-pyrazole-4-carboxylic acid ethyl ester

There total 1 articles about 5-[bis(2-methyl-benzoyl)-amino]-1-methyl-1H-pyrazole-4-carboxylic acid ethyl ester 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: 79.0%

ethyl 5-amino-1-methyl-1H-pyrazole-4-carboxylate (31037-02-2) + ortho-toluoyl chloride (933-88-0) → 5-[bis(2-methyl-benzoyl)-amino]-1-methyl-1H-pyrazole-4-carboxylic acid ethyl ester (271778-18-8)

Guidance literature:

With pyridine; at 40 ℃; for 17h;

DOI:10.1016/S0968-0896(00)00207-8

Reference yield: 94.0%

5-[bis(2-methyl-benzoyl)-amino]-1-methyl-1H-pyrazole-4-carboxylic acid ethyl ester (271778-18-8) → 1-methyl-5-(2-methyl-benzoylamino)-1H-pyrazole-4-carboxylic acid ethyl ester (271778-19-9)

Guidance literature:

With hydrazine hydrate; In 1,4-dioxane; isopropyl alcohol; for 1.5h; Heating;

DOI:10.1016/S0968-0896(00)00207-8

Reference yield:

5-[bis(2-methyl-benzoyl)-amino]-1-methyl-1H-pyrazole-4-carboxylic acid ethyl ester (271778-18-8) → 1-methyl-6-o-tolyl-1H-pyrazolo[3,4-d][1,3]oxazin-4-one

Guidance literature:

Multi-step reaction with 2 steps

1: 94 percent / hydrazine hydrate / dioxane; propan-2-ol / 1.5 h / Heating

2: 89 percent / Ph₃P; Et₃N; Br₂C₂Cl₄ / toluene / 18 h / 80 °C

With Br₂C₂Cl₄; hydrazine hydrate; triethylamine; triphenylphosphine; In 1,4-dioxane; isopropyl alcohol; toluene;

DOI:10.1016/S0968-0896(00)00207-8

upstream raw materials:

ethyl 5-amino-1-methyl-1H-pyrazole-4-carboxylate

ortho-toluoyl chloride

Downstream raw materials:

1-methyl-5-(2-methyl-benzoylamino)-1H-pyrazole-4-carboxylic acid ethyl ester