1-(Methylsulfonyl)pyrazole-4-boronic acid pinacol ester

Base Information

• Chemical Name: 1-(Methylsulfonyl)pyrazole-4-boronic acid pinacol ester
• CAS No.: 944994-03-0
• Molecular Formula: C10H19BN2O5S
• Molecular Weight: 290.14426
• Hs Code.: 2933199090
• Mol file: 944994-03-0.mol

Synonyms:1-(Methylsulfonyl)pyrazole-4-boronic acid pinacol ester;1-(methylsulfonyl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole;1-methanesulfonyl-4-(tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole

Chemical Property of 1-(Methylsulfonyl)pyrazole-4-boronic acid pinacol ester

Chemical Property:

• PSA: 78.80000
• LogP: 1.07080
• Storage Temp.: 2-8°C

Purity/Quality:

99%, ^*data from raw suppliers

1-(Methylsulfonyl)pyrazole-4-boronicacidpinacolester 97.0% ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

• Uses: 1-(methylsulfonyl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole is a useful research chemical.

Technology Process of 1-(Methylsulfonyl)pyrazole-4-boronic acid pinacol ester

There total 2 articles about 1-(Methylsulfonyl)pyrazole-4-boronic acid pinacol 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: 86.0%

pyrazole-4-boronic acid pinacol ester (269410-08-4) + methanesulfonyl chloride (124-63-0) → 1-(methylsulfonyl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (944994-03-0)

Guidance literature:

With triethylamine; In dichloromethane; at 0 - 20 ℃;

Reference yield: 57.0%

→ 1-(methylsulfonyl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (944994-03-0)

Guidance literature:

With sodium hydride; In N,N-dimethyl-formamide; at 20 ℃; for 0.0833333h;

In N,N-dimethyl-formamide; at 20 ℃; for 6h;

Reference yield:

1-(methylsulfonyl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (944994-03-0) + C16H13BrF2N2O3 → C20H18F2N4O5S

Guidance literature:

With (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride; potassium carbonate; In 1,4-dioxane; water; at 80 ℃; for 14h; Inert atmosphere;

upstream raw materials:

pyrazole-4-boronic acid pinacol ester

methanesulfonyl chloride

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