Name | 1,4-Benzenediboronic acid |
Synonyms | AKOS BRN-0002 1,4-Phenyldiboronic acid P-PHENYLENEDIBORONIC ACID 1,4-Benzenediboronic acid 1,4-BENZENEDIBORONIC ACID Benzene-1,4-diboronic acid BENZENE-1,4-DIBORONIC ACID 1,4-PHENYLENEDIBORONIC ACID 1,4-Phenylenediboronic acid 1,4-Phenylenebisboronic acid benzene-1,4-diyldiboronic acid 1,4-PHENYLENEBIS(BORONIC ACID) 4-(Dihydroxyboryl)phenylboronic acid 4-(DIHYDROXYBORYL)PHENYLBORONIC ACID |
CAS | 4612-26-4 |
EINECS | 628-888-0 |
InChI | InChI=1/C6H8B2O4/c9-7(10)5-1-2-6(4-3-5)8(11)12/h1-4,9-12H |
InChIKey | BODYVHJTUHHINQ-UHFFFAOYSA-N |
Molecular Formula | C6H8B2O4 |
Molar Mass | 165.75 |
Density | 1.33±0.1 g/cm3(Predicted) |
Melting Point | >350°C(lit.) |
Boling Point | 420.1±55.0 °C(Predicted) |
Flash Point | 207.9°C |
Water Solubility | Soluble in water 2.5%. |
Solubility | soluble in Methanol |
Vapor Presure | 8.27E-08mmHg at 25°C |
Appearance | Solid |
Color | white to off-white |
BRN | 2836921 |
pKa | 8.30±0.17(Predicted) |
Storage Condition | Keep in dark place,Sealed in dry,Room Temperature |
Refractive Index | 1.555 |
MDL | MFCD00236018 |
Use | Reagent used for . Externally initiated Kumada catalyst-transfer polycondensation . Suzuki-Miyaura cross-coupling reactions . Energy transfer processes in optoelectronic devices . Palladium-catalyzed sequential alkenylation and conjugate addition rea |
Risk Codes | R22 - Harmful if swallowed R36/37/38 - Irritating to eyes, respiratory system and skin. R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. |
Safety Description | S36 - Wear suitable protective clothing. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. |
WGK Germany | 3 |
TSCA | No |
HS Code | 29310095 |
Hazard Note | Corrosive |
Hazard Class | IRRITANT |
use | p-phenyldiboronic acid can be used as an intermediate in pharmaceutical synthesis. |
preparation | compound m(8.87g,37.6mmol) is dissolved in tetrahydrofuran (140mL), hexane solvent and 2.5M n-butyl lithium (18mL,45.1mmol) are added dropwise at -78 ℃, and then stirred for 1 hour. After slowly adding trimethyl borate (13mL,56.4mmol), stir for 2 hours. Then add 2M hydrochloric acid to neutralize, and extract the product with ethyl acetate and water. Recrystallization with dichloromethane and hexane to obtain the compound p-phenyldiboronic acid n(2.93g,47%). |