High purity 98% diethyl diethylmalonate cas 77-25-8 DIETHYLYLMALONIC ACID

High purity 98% diethyl diethylmalonate cas 77-25-8 Diethylmalonic Acid Diethyl Ester

Quick Detail:

English name: Diethyl Diethylmalonate

CAS number: 77-25-8

EINECS number: 201-016-2

Formula: C11H20O4

Molecular weight: 216.28

Boiling point: 229°C at 760 mmHg

Flash point: 94.4°C

Density: 0.996g/cm3

Assay: 98%

Appearance: A colorless liquid

Product description:

It’s made by ethyl malonate,in the reaction flask,adding absolute ethanol 300mL, sodium metal 24.85g (1.08mol) stirring, after the reaction, a solution of diethyl malonate 80g (0.5mol), about 1h End, water bath 15min, cooled solid precipitated. Solution of iodine oxide 156g (1.0mol), about 1h, step reflux 3h. Ethanol was distilled off. Diluted with cold water and extracted with ether (75ml × 3). The combined ether extracts were washed with water, dried over anhydrous calcium chloride. The ether was distilled off, and then temperature distillation, collecting fractions of 218 ~ 222 ℃ to give diethyl malonate.

Specifications:

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