1-(2-FLUOROETHYL)-4-(4,4,5,5-TETRAMETHYL-1,3,2-DIOXABOROLAN-2-YL)-1 H-PYRAZOLE

Base Information

• Chemical Name: 1-(2-FLUOROETHYL)-4-(4,4,5,5-TETRAMETHYL-1,3,2-DIOXABOROLAN-2-YL)-1 H-PYRAZOLE
• CAS No.: 1049730-39-3
• Molecular Formula: C11H18BFN2O2
• Molecular Weight: 240.086
• Mol file: 1049730-39-3.mol

Synonyms:1-(2-FLUOROETHYL)-4-(4,4,5,5-TETRAMETHYL-1,3,2-DIOXABOROLAN-2-YL)-1 H-PYRAZOLE;1-(2-fluoroethyl)-4-(tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole

Chemical Property of 1-(2-FLUOROETHYL)-4-(4,4,5,5-TETRAMETHYL-1,3,2-DIOXABOROLAN-2-YL)-1 H-PYRAZOLE

Chemical Property:

• PSA: 36.28000
• LogP: 1.15180
• Storage Temp.: 2-8°C

Purity/Quality:

97% ^*data from raw suppliers

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

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Useful:

Technology Process of 1-(2-FLUOROETHYL)-4-(4,4,5,5-TETRAMETHYL-1,3,2-DIOXABOROLAN-2-YL)-1 H-PYRAZOLE

There total 2 articles about 1-(2-FLUOROETHYL)-4-(4,4,5,5-TETRAMETHYL-1,3,2-DIOXABOROLAN-2-YL)-1 H-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: 85.0%

pyrazole-4-boronic acid pinacol ester (269410-08-4) + 1-fluoro-2-iodoethane (762-51-6) → 1-(2-fluoroethyl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (1049730-39-3)

Guidance literature:

pyrazole-4-boronic acid pinacol ester; With sodium hydride; In N,N-dimethyl-formamide; at 0 - 20 ℃; for 0.5h;

1-fluoro-2-iodoethane; In N,N-dimethyl-formamide; at 20 ℃; for 4h;

Reference yield: 40.0%

pyrazole-4-boronic acid pinacol ester (269410-08-4) + 2-fluoroethyl bromide (762-49-2) → 1-(2-fluoroethyl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (1049730-39-3)

Guidance literature:

With caesium carbonate; In N,N-dimethyl-formamide; at 160 ℃; for 0.5h; Microwave irradiation;

DOI:10.1021/jm500073h

Reference yield: 73.0%

1-(2-fluoroethyl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (1049730-39-3) + 5-bromo-N-(2-methyl-5-(3-(trifluoromethyl)benzamido)phenyl)nicotinamide → 5-(1-(2-fluoroethyl)-1H-pyrazol-4-yl)-N-(2-methyl-5-(3-(trifluoromethyl)benzamido)phenyl)nicotinamide

Guidance literature:

With tetrakis(triphenylphosphine) palladium⁽⁰⁾; cesium fluoride; In tetrahydrofuran; methanol; for 16h; Reflux;

DOI:10.1016/j.bmc.2021.116245

upstream raw materials:

pyrazole-4-boronic acid pinacol ester

1-fluoro-2-iodoethane

2-fluoroethyl bromide