20320-59-6 factory in China Diethyl(phenylacetyl)malonate

use

Organic synthesis intermediates.

production method

Anhydrous ethanol co-evaporated with diethyl phthalate and sodium metal is added dropwise to the mixture of diethyl malonate, carbon tetrachloride and magnesium, heating starts the reaction, and controlling the temperature to make the reaction gentle. 
Then add anhydrous diethyl ether, heat for 1h, add the diethyl ether solution of phenylacetyl chloride (add slowly, so as not to make the reaction too intense). 
After the reaction is completed, cool and add water, separate the oil layer, and evaporate the ether under reduced pressure to obtain diethyl phenyllevulinate.

Where is the advantage of white whale chemical industry

1. Chinese origin.

2、 the purity of all products >99%.

3、 high quality products and competitive prices.

4、 Sufficient inventory, fast delivery, and the ability to meet customer needs.

5、 safe and prudent shipping a variety of transportation modes for you to choose.

6、 Clearance rate of multiple ports >99%.

7、 Delivery time within 7 days after payment and 24 hours of quality after-sales service.