![](/CAS/GIF/195062-59-0.gif)
2-METHYLPHENYLBORONIC ACID, PINACOL ESTER synthesis
- Product Name:2-METHYLPHENYLBORONIC ACID, PINACOL ESTER
- CAS Number:195062-59-0
- Molecular formula:C13H19BO2
- Molecular Weight:218.1
![Bis(pinacolato)diboron](/CAS/20180808/GIF/73183-34-3.gif)
73183-34-3
566 suppliers
$6.00/5g
![O-TOLUENESULFONYL CHLORIDE](/CAS/GIF/133-59-5.gif)
133-59-5
137 suppliers
$15.00/1g
![2-METHYLPHENYLBORONIC ACID, PINACOL ESTER](/CAS/GIF/195062-59-0.gif)
195062-59-0
118 suppliers
$9.00/1g
Yield: 92.5%
Reaction Conditions:
with 2,2'-azobis[2-[1-(2-hydroxyethyl)-2-imidazolin-2-yl]propane] dihydrochloride in water at 100; for 2 h;Temperature;Reagent/catalyst;
Steps:
6; 7
Add 100ml of water, 0.1mol of o-toluenesulfonyl chloride, and 0.2mol of bis(pinacolato)diboron to the reaction flask, and stir thoroughly, then add 0.01mol 2,2'-azobis[2-[1-(2-hydroxyethyl)-2-imidazolin-2-yl]propane] dihydrochloride, slowly increase the temperature to 100°C, keep the temperature for 2h, the whole reaction process is in a stirring state, after the reaction, the system was slowly cooled to room temperature, extracted with dichloromethane three times, the organic phase was collected, distilled under reduced pressure, and dried in vacuum, a white solid o-toluene boronic acid pinacol ester was obtained with a yield of 92.5% and a purity of 95.8%.
References:
Shandong Zhuojun Industrial Co., Ltd.;Li Juan;Yuan Xiaodan CN111793080, 2020, A Location in patent:Paragraph 0052-0053; 0054-0055
![2-Chlorotoluene](/CAS/GIF/95-49-8.gif)
95-49-8
326 suppliers
$10.00/5g
![Bis(pinacolato)diboron](/CAS/20180808/GIF/73183-34-3.gif)
73183-34-3
566 suppliers
$6.00/5g
![2-METHYLPHENYLBORONIC ACID, PINACOL ESTER](/CAS/GIF/195062-59-0.gif)
195062-59-0
118 suppliers
$9.00/1g
![2-Bromotoluene](/CAS/GIF/95-46-5.gif)
95-46-5
293 suppliers
$10.00/10 g
![Bis(pinacolato)diboron](/CAS/20180808/GIF/73183-34-3.gif)
73183-34-3
566 suppliers
$6.00/5g
![2-METHYLPHENYLBORONIC ACID, PINACOL ESTER](/CAS/GIF/195062-59-0.gif)
195062-59-0
118 suppliers
$9.00/1g
![o-Toluidine](/CAS/GIF/95-53-4.gif)
95-53-4
430 suppliers
$10.00/1g
![Bis(pinacolato)diboron](/CAS/20180808/GIF/73183-34-3.gif)
73183-34-3
566 suppliers
$6.00/5g
![2-METHYLPHENYLBORONIC ACID, PINACOL ESTER](/CAS/GIF/195062-59-0.gif)
195062-59-0
118 suppliers
$9.00/1g
![2-Bromotoluene](/CAS/GIF/95-46-5.gif)
95-46-5
293 suppliers
$10.00/10 g
![Pinacolborane](/CAS/GIF/25015-63-8.gif)
25015-63-8
218 suppliers
$22.39/5G
![2-METHYLPHENYLBORONIC ACID, PINACOL ESTER](/CAS/GIF/195062-59-0.gif)
195062-59-0
118 suppliers
$9.00/1g