Phenethylboronic acid
Synonym(s):2-Phenylethaneboronic acid
- CAS NO.：34420-17-2
- Empirical Formula: C8H11BO2
- Molecular Weight: 149.98
- MDL number: MFCD01631226
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-04-24 14:58:57
What is Phenethylboronic acid?
Chemical properties
off-white powder
The Uses of Phenethylboronic acid
Phenethylboronic acid is a good inhibitor of chymotrypsin.
The Uses of Phenethylboronic acid
Reactant involved in:• ;Suzuki-Miyaura cross-coupling reactions1• ;Reactions with α-diazocarbonyl compounds2• ;C-H functionalization of quinones3• ;Cross-coupling with aromatic amines4• ;Arylation and alkylation of diphenylisoxazole5Reactant used in studies of the stability of boronic esters to hydrolysis6
The Uses of Phenethylboronic acid
2-Phenylethylboronic acid is used as a reactant in Suzuki-Miyaura cross-coupling reactions, reactions with α-diazocarbonyl compounds, C-H functionalization of quinones, cross-coupling with aromatic amines and arylation & alkylation of diphenylisoxazole. It has been also used as reactant in studies of the stability of boronic esters to hydrolysis.
Properties of Phenethylboronic acid
| Melting point: | 76-81 °C (lit.) |
| Boiling point: | 310.4±35.0 °C(Predicted) |
| Density | 1.077±0.06 g/cm3(Predicted) |
| storage temp. | Inert atmosphere,Store in freezer, under -20°C |
| form | powder to crystal |
| pka | 10.12±0.43(Predicted) |
| color | White to Almost white |
| CAS DataBase Reference | 34420-17-2(CAS DataBase Reference) |
Safety information for Phenethylboronic acid
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P304+P340:IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P405:Store locked up. |
Computed Descriptors for Phenethylboronic acid
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