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| | 3-Trifluoromethylbenzylcyanide Basic information |
| | 3-Trifluoromethylbenzylcyanide Chemical Properties |
| Hazard Codes | Xn,Xi | | Risk Statements | 10-20/21/22-36/37/38 | | Safety Statements | 16-26-27-36/37/39 | | RIDADR | UN 1993 3/PG 3 | | WGK Germany | 3 | | RTECS | CY1820000 | | Hazard Note | Irritant | | TSCA | TSCA listed | | HazardClass | 3 | | PackingGroup | III | | HS Code | 29269090 | | Storage Class | 3 - Flammable liquids | | Hazard Classifications | Acute Tox. 4 Dermal
Acute Tox. 4 Inhalation
Acute Tox. 4 Oral
Eye Irrit. 2
Flam. Liq. 3
Skin Irrit. 2
STOT SE 3 |
| | 3-Trifluoromethylbenzylcyanide Usage And Synthesis |
| Chemical Properties | CLEAR YELLOW-BROWN LIQUID | | Uses | 3-(Trifluoromethyl)phenylacetonitrile may be used in chemical synthesis studies. | | Synthesis | The general procedure for the synthesis of m-trifluoromethylphenylacetonitrile from the compound (CAS: 773837-37-9) and 3-trifluoromethylbenzyl chloride was as follows: An aqueous solution of sodium cyanide was prepared by adding 61.7 g of sodium cyanide and 112 g of water to a 250 mL beaker and stirring for 2 h until completely dissolved. Add 235 g of 2,3-trifluoromethylbenzyl chloride and 2.5 g of triethylbenzylammonium chloride to a 500 mL three-necked flask, and heat to 60°C. The temperature is controlled at 55~65°C. The aqueous sodium cyanide solution prepared above was slowly added dropwise under the temperature control of 55~65°C. After the dropwise addition was completed, the reaction temperature was maintained at 60°C for 8 hours. Samples were taken for HPLC analysis during the reaction to ensure that the mass fraction of 3-trifluoromethylbenzyl chloride was less than 0.5%. After completion of the reaction, it was cooled to room temperature and left to stratify. The aqueous layer was washed twice with 50 g of water, all aqueous layers were combined and treated with 5% sodium hypochlorite solution. The oil layer was distilled under reduced pressure and the 94-97 °C fraction was collected at -0.095 MPa to give 204 g of m-trifluoromethylbenzylacetonitrile with a product purity ≥94.0% and a yield of 91%. | | References | [1] Patent: CN106349006, 2017, A. Location in patent: Paragraph 0007; 0024; 0037 |
| | 3-Trifluoromethylbenzylcyanide Preparation Products And Raw materials |
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