4-(4,4,5,5-tetraMethyl-1,3,2-dioxaborolan-2-yl)-1-(2,2,2-trifluoroethyl)-1H-pyrazole

Base Information

• Chemical Name: 4-(4,4,5,5-tetraMethyl-1,3,2-dioxaborolan-2-yl)-1-(2,2,2-trifluoroethyl)-1H-pyrazole
• CAS No.: 1049730-42-8
• Molecular Formula: C11H16BF3N2O2
• Molecular Weight: 276.066
• Mol file: 1049730-42-8.mol

Synonyms:4-(4,4,5,5-tetraMethyl-1,3,2-dioxaborolan-2-yl)-1-(2,2,2-trifluoroethyl)-1H-pyrazole;4-(tetramethyl-1,3,2-dioxaborolan-2-yl)-1-(2,2,2-trifluoroethyl)-1H-pyrazole

Chemical Property of 4-(4,4,5,5-tetraMethyl-1,3,2-dioxaborolan-2-yl)-1-(2,2,2-trifluoroethyl)-1H-pyrazole

Chemical Property:

• PSA: 36.28000
• LogP: 1.74460
• Storage Temp.: under inert gas (nitrogen or Argon) at 2-8°C

Purity/Quality:

97% ^*data from raw suppliers

4-(tetramethyl-1,3,2-dioxaborolan-2-yl)-1-(2,2,2-trifluoroethyl)-1H-pyrazole 97.0% ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of 4-(4,4,5,5-tetraMethyl-1,3,2-dioxaborolan-2-yl)-1-(2,2,2-trifluoroethyl)-1H-pyrazole

There total 5 articles about 4-(4,4,5,5-tetraMethyl-1,3,2-dioxaborolan-2-yl)-1-(2,2,2-trifluoroethyl)-1H-pyrazole 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: 78.0%

pyrazole-4-boronic acid pinacol ester (269410-08-4) + 2,2,2-trifluoroethyl trifluoromethanesulphonate (6226-25-1) → 4-(4,4,5,5,-tetramethyl-1,3,2-dioxaborolan-2-yl)-1-(2,2,2-trifluoroethyl)-1H-pyrazole (1049730-42-8)

Guidance literature:

With caesium carbonate; In N,N-dimethyl-formamide; at 20 - 100 ℃; for 2h;

Reference yield: 24.4%

pyrazole-4-boronic acid pinacol ester (269410-08-4) + 1,1,1-trifluoro-2-iodoethane (353-83-3) → 4-(4,4,5,5,-tetramethyl-1,3,2-dioxaborolan-2-yl)-1-(2,2,2-trifluoroethyl)-1H-pyrazole (1049730-42-8)

Guidance literature:

With caesium carbonate; In acetonitrile; at 80 ℃; Inert atmosphere;

DOI:10.1039/d1md00097g

Reference yield: 13.16%

2,2,2-trifluoroethyl trifluoromethanesulphonate (6226-25-1) + 1-ethyl-4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-1H-pyrazole (847818-70-6) → 4-(4,4,5,5,-tetramethyl-1,3,2-dioxaborolan-2-yl)-1-(2,2,2-trifluoroethyl)-1H-pyrazole (1049730-42-8)

Guidance literature:

With caesium carbonate; In N,N-dimethyl-formamide; at 100 ℃; for 3h;

upstream raw materials:

pyrazole-4-boronic acid pinacol ester

2,2,2-trifluoroethyl trifluoromethanesulphonate

2,2,2-trifluoroethyl methanesulfonate

1-ethyl-4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-1H-pyrazole