Identification | Back Directory | [Name]
4-(Methoxycarbonyl)-2-methylphenylboronic acid | [CAS]
158429-38-0 | [Synonyms]
4-(Methoxycarbonyl)-2-methylphenylboronic acid Benzoic acid, 4-borono-3-methyl-, 1-methyl ester 4-(Methoxycarbonyl)-2-methylphenylboronic acid 98% | [Molecular Formula]
C9H11BO4 | [MDL Number]
MFCD16036117 | [MOL File]
158429-38-0.mol | [Molecular Weight]
193.99 |
Chemical Properties | Back Directory | [Boiling point ]
366.7±52.0 °C(Predicted) | [density ]
1.21±0.1 g/cm3(Predicted) | [storage temp. ]
Inert atmosphere,2-8°C | [pka]
7.77±0.58(Predicted) | [Appearance]
Light brown to brown Solid |
Hazard Information | Back Directory | [Synthesis]
General procedure for the synthesis of (4-(methoxycarbonyl)-2-methylphenyl)boronic acid from methyl 4-iodo-3-methylbenzoate: to a 3-liter round-bottomed flask equipped with a mechanical stirrer, thermocouple, and dosing funnel were added 100 g of methyl 4-iodo-3-methylbenzoate and 1.0 L of anhydrous THF.The mixture was cooled to -25 °C, and over a period of 25 minutes 218 mL of isopropyl magnesium chloride (2 M of THF solution) while controlling the internal temperature to not exceed 0°C. Upon completion of the reaction, the mixture was aged at room temperature overnight. Subsequently, THF was removed by distillation under reduced pressure at a temperature below 45 °C. The resulting product slurry was cooled to room temperature and filtered. The filter cake was washed sequentially with water (3 x 500 ml) and toluene (2 x 250 mL), and finally dried under vacuum protected by nitrogen for 18 h. An off-white crystalline solid of (4-(methoxycarbonyl)-2-methylphenyl)boronic acid (64.3 g, 91% yield) was obtained. | [References]
[1] Patent: WO2008/82567, 2008, A1. Location in patent: Page/Page column 6 [2] Patent: WO2007/79186, 2007, A2. Location in patent: Page/Page column 63; 64 |
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Energy Chemical
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