Dimethyl malonate is a reagent used in organic synthesis. It acts as a precursor for the synthesis of mono-substituted and di-substituted acetic acid, barbiturates, vitamin B1 and vitamin B6. It is used in the pharmaceutical industry to prepare pharmaceuticals like chloroquine and butazolidin.
Organic synthetic intermediates.
A mixture of diethyl phthalate, carbon tetrachloride, and magnesium was added by drop to a mixture of diethyl malonate, carbon tetrachloride, and ethanol. The reaction was started by heating, and the temperature was controlled to make the reaction gentle. Then add anhydrous diethyl ether, heat for 1h, and add the diethyl ether solution of benzyl chloride (add slowly, not to make the reaction too intense). After the reaction, the oil layer was separated by cooling and adding water, and the diethyl phenyllemalonate was obtained by steaming diethyl ether under reduced pressure.
|Product Name||bmk oil|
|Appearance||yellow or red liquid|
|Boiling Point||327.8±42.0 °C at 760 mmHg|
|Flash Point||143.0±27.9 °C|
|Vapour Pressure||0.0±0.7 mmHg at 25°C|
|Index of Refraction||1.554|
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|Product name||CAS NO.|
|CBD powder/ oil||13956-29-1|
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