Диэтил сукцина

Химические свойства

Diethyl succinate is the diethyl ester of succinate. It is a colorless liquid with a faint, pleasant odor. miscible with ethanol and ether, soluble in acetone, insoluble in water.

Вхождение

Reported found in apple, raspberry, cognac, rum, whiskey, cider, sherry, plum brandy, apple brandy, grape brandy, cherry brandy, cocoa, arrack and red, white, port, strawberry and sparkling wines.

Использование

Diethyl Succinate is a diester molecule present naturally in plant and animal tissues. Used commonly in fragrances and food flavourings.

Использование

Diethyl succinate can be used as solvent; food flavoring agent; organic synthesis intermediate; gas chromatography stationary solution (maximum use temperature 60°C, solvent is ether). Alkyl succinates have been used as ashless dispersants and detergent additives for lubricating oils.

Подготовка

Diethyl succinate is synthesized by esterification of succinic acid and ethanol; by direct esterification of the acid in the presence of concentrated H2SO4 in benzene solution.

Общее описание

Diethyl succinate(DES) is a diethyl ester with succinate molecules. It has two ester groups and is majorly used in fragrances. It produced by the esterification of succinic acid with ethanol.

Профиль безопасности

Mildly toxic by ingestion. A skin and eye irritant. Combustible liquid. Reaction with ethyl trifluoroacetate + sodium hydride may cause a fire or explosion. When heated to decomposition it emits acrid smoke and irritating fumes. See also ESTERS.

Методы очистки

Dry the succinate with MgSO4, and distil it at 15mm pressure. [Beilstein 2 IV 1914.]