1-(Tetrahydro-1,1-dioxido-3-thienyl)-4-(4,4,5,5-tetraMethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole

Base Information

• Chemical Name: 1-(Tetrahydro-1,1-dioxido-3-thienyl)-4-(4,4,5,5-tetraMethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole
• CAS No.: 1233526-31-2
• Molecular Formula: C₁₃H₂₁BN₂O₄S
• Molecular Weight: 312.198
• Mol file: 1233526-31-2.mol

Synonyms:Racemic 1-(1,1-dioxidotetrahydrothiophen-3-yl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole

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

Chemical Property:

Purity/Quality:

99%, ^*data from raw suppliers

1-(Tetrahydro-1,1-dioxido-3-thienyl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole ^*data from reagent suppliers

Safty Information:

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MSDS Files:

Useful:

• Uses: 1-(Tetrahydro-1,1-dioxido-3-thienyl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole is used in the synthesis of PI3K inhibitors for the treatment for cancer.

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

There total 2 articles about 1-(Tetrahydro-1,1-dioxido-3-thienyl)-4-(4,4,5,5-tetraMethyl-1,3,2-dioxaborolan-2-yl)-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:

pyrazole-4-boronic acid pinacol ester (269410-08-4) + 3-bromotetrahydrothiophene 1,1-dioxide (14008-53-8) → Racemic 1-(1,1-dioxidotetrahydrothiophen-3-yl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (1233526-31-2)

Guidance literature:

With caesium carbonate; In acetonitrile; at 90 ℃;

Reference yield:

→ Racemic 1-(1,1-dioxidotetrahydrothiophen-3-yl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (1233526-31-2)

Guidance literature:

With oxalyl dichloride; N,N-dimethyl-formamide; In dichloromethane; at 20 ℃; for 1h;

Reference yield: 66.0%

Racemic 1-(1,1-dioxidotetrahydrothiophen-3-yl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (1233526-31-2) + 5-bromo-2-hydroxybenzamide (6329-74-4) → Racemic 5-[1-(1,1-dioxidotetrahydrothiophen-3-yl)-1H-pyrazol-4-yl]-2-hydroxybenzamide

Guidance literature:

With tris-(dibenzylideneacetone)dipalladium⁽⁰⁾; sodium carbonate; tri tert-butylphosphoniumtetrafluoroborate; In 1,4-dioxane; water; at 100 ℃; for 16h; Inert atmosphere;

upstream raw materials:

pyrazole-4-boronic acid pinacol ester

3-bromotetrahydrothiophene 1,1-dioxide

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