Molecular Formula | C12H15NO |
Molar Mass | 189.25 |
Physical and Chemical Properties | Chemical quality This product is solid, insoluble in water, soluble in organic solvents. |
Use | Use 2, 2-dimethyl-p-ethoxycyanogen is an intermediate of pyrethroid pyrethroid. |
Raw Materials | Potassium hydroxide Iodomethane Tetrabutylammonium bromide phenylacetonitrile |
Downstream Products | 2,2-dimethyl-p-ethoxy phenyl acetic acid 2,2-dimethyl-p-ethoxy phenyl acetic acid |
The preparation method is to add p-ethoxycyanobenzyl and phase transfer catalyst tetrabutylammonium bromide, potassium hydroxide and water in a three-mouth bottle, and add methyl iodide dropwise under stirring at 60°C. After the dropwise addition, Continue to reflux and stir at this temperature, wait for slow reflux, then heat up to 80-85°C, react for 7 hours, cool to room temperature and extract with benzene, the extract is, 2-methyl p-ethoxycyanobenzyl was obtained, then mixed with tetrabutyl ammonium bromide and potassium hydroxide aqueous solution, methyl iodide was added dropwise under stirring at 60 ℃, after dripping, stirring for 3.5h, adding potassium hydroxide and stirring for 5h, adding methyl iodide, reacting at the same temperature for 2h, and treating the product according to the above treatment method.