Name | 2,4-Dichlorobenzyl alcohol |
Synonyms | Dybenal myacidesp Rapidosept 2,4-DICHLOROBENZL ALCOHOL 2,4-dichloro-benzylalcoho 2,4-Dichlorobenzyl alcohol 2,4-Dichlorobenzoyl alcohol benzylalcohol,2,4-dichloro- Benzenemethanol, 2,4-dichloro- 30) 2,4-DICHLORO BENZYL ALCOHOL |
CAS | 1777-82-8 |
EINECS | 217-210-5 |
InChI | InChI=1/C7H6Cl2O/c8-6-2-1-5(4-10)7(9)3-6/h1-3,10H,4H2 |
InChIKey | DBHODFSFBXJZNY-UHFFFAOYSA-N |
Molecular Formula | C7H6Cl2O |
Molar Mass | 177.03 |
Density | 1.2970 (rough estimate) |
Melting Point | 55-58°C(lit.) |
Boling Point | 150 °C (25 mmHg) |
Flash Point | >230°F |
Water Solubility | Soluble in water, methanol and chloroform. |
Solubility | 1g/l |
Vapor Presure | 0.154Pa at 25℃ |
Appearance | White to bright yellow crystals |
Color | White to Off-White |
Merck | 14,3060 |
BRN | 1448652 |
pKa | 13.60±0.10(Predicted) |
Storage Condition | 2-8°C |
Refractive Index | 1.5756 (estimate) |
MDL | MFCD00004606 |
Use | Used as a pharmaceutical Intermediate |
Hazard Symbols | Xi - Irritant |
Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
Safety Description | 24/25 - Avoid contact with skin and eyes. |
WGK Germany | 2 |
RTECS | DO0890000 |
HS Code | 29062900 |
Hazard Note | Irritant |
LogP | 2.8 at 24℃ |
EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
Application | 2, 4-dichlorobenzyl alcohol is an organic intermediate that can be prepared by acidolysis of 2, 4-dichlorobenzonitrile 2, 4-dichlorobenzoic acid is reduced to 2, 4-dichlorobenzyl alcohol or by hydrolysis of 2, 4-dichlorobenzyl chloride. |
preparation | 2, 4-dichlorobenzonitrile (17.2g,0.1mol) was added into a 100mL round bottom flask, sulfuric acid (9.8g,0.1mol) solution was added dropwise, after the dropwise addition, heat preservation reaction was carried out at 125-130 ℃ for 2 hours, the reaction was completed, cooling to below 100 ℃, water was added to dilute, and cooling to below 50 ℃, stratifying, removing raw materials, dewatering and concentrating the obtained solution under reduced pressure to half, cooling and crystallization to obtain 17.38g of 2,4-dichlorobenzoic acid with a yield of 91%. Add 2,4-dichlorobenzoic acid (19.1g,0.1mol) and ethanol (30mL) into a 100mL round bottom flask, then slowly drop a mixed solution of NaBH4(1.9g,0.05mol) and alkenine (10mL, 2% sodium hydroxide solution) at 0 ℃, drop and stir for reaction for 1h, filter, and wash the filter residue three times (5mL × 3) with ethanol, the obtained organic phase was distilled to obtain 15.05g of 2,4-dichlorobenzyl alcohol with a yield of 85%. |
biological activity | 2,4-Dichlorobenzyl alcohol is a mild preservative that can kill bacteria and viruses related to mouth and throat infections. |
use | as a pharmaceutical intermediate |