B-(P-CHLOROPHENYL)PROPIONIC ACID
3-(4-Chlorophenyl)propionic acid
CAS: 2019-34-3
Molecular Formula: ClC6H4CH2CH2CO2H
B-(P-CHLOROPHENYL)PROPIONIC ACID - Names and Identifiers
| Name | 3-(4-Chlorophenyl)propionic acid |
| Synonyms | AKOS B029582 AKOS BBS-00007940 4-CHLOROPHENYLPROPIONIC ACID 4-Chlorobenzenepropanoic acid B-(P-CHLOROPHENYL)PROPIONIC ACID 3-(4-chlorophenyl)propanoic acid Benzenepropanoic acid, 4-chloro- 3-(4-CHLOROPHENYL)PROPANOIC ACID 3-(P-CHLOROPHENYL)PROPIONIC ACID 3-(4-Chlorophenyl)propionic acid 3-(4-CHLOROPHENYL)PROPIONIC ACID 3-(4'-CHLOROPHENYL) PROPIONIC ACID |
| CAS | 2019-34-3 |
| InChI | InChI=1/C9H9ClO2/c10-8-4-1-7(2-5-8)3-6-9(11)12/h1-2,4-5H,3,6H2,(H,11,12) |
| InChIKey | BBSLOKZINKEUCR-UHFFFAOYSA-N |
B-(P-CHLOROPHENYL)PROPIONIC ACID - Physico-chemical Properties
| Molecular Formula | ClC6H4CH2CH2CO2H |
| Molar Mass | 184.62 |
| Density | 1.27g/cm3 |
| Melting Point | 127-131℃ |
| Boling Point | 306.6°C at 760 mmHg |
| Flash Point | 139.2°C |
| Vapor Presure | 0.000333mmHg at 25°C |
| pKa | 4.61(at 25℃) |
| Storage Condition | Sealed in dry,Room Temperature |
| Refractive Index | 1.558 |
| MDL | MFCD00016555 |
| Physical and Chemical Properties | Colorless crystals. Melting point 126 ℃(121-122.5 ℃). Soluble in carbon tetrachloride. |
| Use | Intermediate of the herbicide Maidisan. |
B-(P-CHLOROPHENYL)PROPIONIC ACID - Risk and Safety
| Hazard Symbols | Xn - Harmful |
| Risk Codes | R22 - Harmful if swallowed R41 - Risk of serious damage to eyes |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. |
| WGK Germany | 2 |
| HS Code | 29163990 |
| Hazard Class | IRRITANT |
B-(P-CHLOROPHENYL)PROPIONIC ACID - Production method
by electrolytic reduction of p-chlorobenzene acrylic acid. The reduction is carried out in a double-layer electrolyzer equipped with a permeable diaphragm container. Use mercury to cover the outer groove, the bottom of the groove is used as the cathode, and the anode is a spiral lead sheet suspended in the inner groove. The catholyte is equipped with an electric stirrer, starting with 7-8% sodium sulfate solution into the inner and outer tanks respectively, and then suspending p-chlorocinnamic acid in the electrolyte in the outer tank at a ratio of 0.5-0.7mol/L, starting the stirrer, adding an alkali solution to the catholyte at a ratio of p-chlorocinnamic acid to 0.6-0.8mol sodium hydroxide per mole. Turn on the DC power supply for electrolytic reduction. The voltage used in the experiment is 10-20V and the current is about 0.8-3A. The reduction of 1mol of p-chlorocinnamic acid requires about 60-65A · h of electricity. After the reduction is completed, use the pouring method or siphon method to separate the catholyte and mercury, filter out a small amount of insoluble matter, acidify with excess sulfuric acid (1:1), filter, wash, and dry to obtain a white powder solid with a yield of about 80%., Purified by carbon tetrachloride to obtain the finished product.
Last Update：2024-04-10 22:29:15
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