3-(4-methanesulfonylamino-phenyl)-4,5-dihydro-pyrazole-1-carboxylic acid tert-butyl ester

Base Information

• Chemical Name: 3-(4-methanesulfonylamino-phenyl)-4,5-dihydro-pyrazole-1-carboxylic acid tert-butyl ester
• CAS No.: 1076690-86-2
• Molecular Formula: C₁₅H₂₁N₃O₄S
• Molecular Weight: 339.415
• Mol file: 1076690-86-2.mol

Synonyms:3-(4-methanesulfonylamino-phenyl)-4,5-dihydro-pyrazole-1-carboxylic acid tert-butyl ester

Chemical Property of 3-(4-methanesulfonylamino-phenyl)-4,5-dihydro-pyrazole-1-carboxylic acid tert-butyl ester

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of 3-(4-methanesulfonylamino-phenyl)-4,5-dihydro-pyrazole-1-carboxylic acid tert-butyl ester

There total 4 articles about 3-(4-methanesulfonylamino-phenyl)-4,5-dihydro-pyrazole-1-carboxylic acid tert-butyl 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: 30.0%

3-(4-amino-phenyl)-4,5-dihydro-pyrazole-1-carboxylic acid tert-butyl ester (1076690-82-8) + methanesulfonyl chloride (124-63-0) → 3-(4-methanesulfonylamino-phenyl)-4,5-dihydro-pyrazole-1-carboxylic acid tert-butyl ester (1076690-86-2)

Guidance literature:

With N-ethyl-N,N-diisopropylamine; In tetrahydrofuran; at 20 ℃; for 1.66667h;

Reference yield:

3-(4-nitro-phenyl)-4,5-dihydro-pyrazole-1-carboxylic acid tert-butyl ester (1076690-81-7) → 3-(4-methanesulfonylamino-phenyl)-4,5-dihydro-pyrazole-1-carboxylic acid tert-butyl ester (1076690-86-2)

Guidance literature:

Multi-step reaction with 2 steps

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

2: N-ethyl-N,N-diisopropylamine / tetrahydrofuran / 1.67 h / 20 °C

With hydrogen; N-ethyl-N,N-diisopropylamine; palladium 10% on activated carbon; In tetrahydrofuran; methanol;

Reference yield:

3-(4-nitro-phenyl)-4,5-dihydro-1H-pyrazole (103753-04-4) → 3-(4-methanesulfonylamino-phenyl)-4,5-dihydro-pyrazole-1-carboxylic acid tert-butyl ester (1076690-86-2)

Guidance literature:

Multi-step reaction with 3 steps

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

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

3: N-ethyl-N,N-diisopropylamine / tetrahydrofuran / 1.67 h / 20 °C

With dmap; hydrogen; N-ethyl-N,N-diisopropylamine; palladium 10% on activated carbon; In tetrahydrofuran; methanol;

upstream raw materials:

3-(4-amino-phenyl)-4,5-dihydro-pyrazole-1-carboxylic acid tert-butyl ester

methanesulfonyl chloride

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

di-tert-butyl dicarbonate

Downstream raw materials:

N-[4-(4,5-dihydro-1H-pyrazol-3-yl)-phenyl]-methanesulfonamide trifluoroacetate

N-(4-{1-[2-(2,4-dimethyl-phenyl)-acetyl]-4,5-dihydro-1H-pyrazol-3-yl}-phenyl)-methanesulfonamide

N-(4-{1-[2-(2,4,6-trimethyl-phenyl)-acetyl]-4,5-dihydro-1H-pyrazol-3-yl}-phenyl)-methanesulfonamide

N-(4-{1-[2-(2-chloro-4,5-dimethoxy-phenyl)-acetyl]-4,5-dihydro-1H-pyrazol-3-yl}-phenyl)-methanesulfonamide