4334-88-7
(4-Ethoxycarbonylphenyl)boronic acid
CAS: 4334-88-7
Molecular Formula: C9H11BO4
4334-88-7 - Names and Identifiers
| Name | (4-Ethoxycarbonylphenyl)boronic acid |
| Synonyms | Ethyl 4-Boronobenzoat 4-(Ethoxycarbonyl)Phenylboroni 4-CARBETHOXY-PHENYL-BORONIC ACID 4-Carboethoxybenzeneboronic Acid 4-Ethoxycarbonylphenylboronic acid 4-Borono-benzoic Acid 1-Ethyl Ester p-Borono-benzoic Acid 1-Ethyl Ester (4-Ethoxycarbonylphenyl)boronic acid Benzoic acid, 4-borono-, 1-ethyl ester |
| CAS | 4334-88-7 |
| EINECS | 206-141-6 |
| InChI | InChI=1/C9H11BO4/c1-2-14-9(11)7-3-5-8(6-4-7)10(12)13/h3-6,12-13H,2H2,1H3 |
| InChIKey | ZLNFACCFYUFTLD-UHFFFAOYSA-N |
4334-88-7 - Physico-chemical Properties
| Molecular Formula | C9H11BO4 |
| Molar Mass | 193.99 |
| Density | 1.21±0.1 g/cm3(Predicted) |
| Melting Point | 135 °C (dec.) (lit.) |
| Boling Point | 355.5±44.0 °C(Predicted) |
| Flash Point | 168.8°C |
| Vapor Presure | 1.14E-05mmHg at 25°C |
| Appearance | White to white-like powder |
| Color | White to off-white |
| pKa | 7.69±0.10(Predicted) |
| Storage Condition | Keep in dark place,Sealed in dry,Room Temperature |
| Refractive Index | 1.526 |
| MDL | MFCD02179441 |
4334-88-7 - Risk and Safety
| Risk Codes | R36/37/38 - Irritating to eyes, respiratory system and skin. R26 - Very Toxic by inhalation R22 - Harmful if swallowed |
| Safety Description | S37/39 - Wear suitable gloves and eye/face protection S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S36/37 - Wear suitable protective clothing and gloves. S28 - After contact with skin, wash immediately with plenty of soap-suds. |
| WGK Germany | 3 |
| TSCA | No |
| HS Code | 29163990 |
| Hazard Class | IRRITANT |
4334-88-7 - Reference Information
| Introduction | 4-ethoxycarbonylphenylboronic acid is an organic intermediate, which can be 4-It is prepared by the reaction of ethyl iodiobenzoate and triisopropyl borate. 4-Ethoxycarbonylphenylboronic acid can be used to prepare 4-carboxyphenylboronic acid. 4-carboxyphenylboronic acid is a very important chemical intermediate and is widely used in medicine and other fields. |
| preparation | 400mL of anhydrous ethanol dried by 3A molecular sieve, 33.0g(0.2mol) of 4-carboxyphenylboronic acid, 8mL of concentrated sulfuric acid and refluxing at 105-110 ℃ for 24 hours are sequentially added to a 1L dry eggplant bottle with condenser tube and dryer, TLC(CHCl/MeOH = 10/1) has few raw materials for detection. Ethanol is distilled under reduced pressure to obtain white solid. 500mL of water is added, filtered, 250mL of saturated NaHCO3 solution is washed, water is washed to neutral, and dried to obtain 33.5g of 4-ethoxycarbonylphenylboronic acid (yield 86.3%). |
Last Update：2024-04-10 22:29:15
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