3-メチル-3-フェニルオキシラン-2-カルボン酸エチル

外観

無色～うすい黄赤色～黄色透明液体

定義

本品は、次の化学式で表されるエステルである。

化粧品の成分用途

香料

化学的特性

Ethyl 3-Methyl-3-phenylglycidate exists as two optically active pairs of cis- and trans-isomers; each isomer has a characteristic odor . The commercial product is a racemic mixture of all four isomers and has a strong, sweetish, strawberry odor. The cis/trans ratio obtained in the Darzens condensation of acetophenone (R==CH3) and ethyl chloroacetate depends on the base used in the reaction.

天然物の起源

Has apparently not been reported to occur in nature.

使用

Ethyl 3-methyl-3-phenylglycidate is a synthetic flavoring agent that is a glycidic acid ester. It is a colorless to pale yellow liquid with a strong fruit odor suggestive of strawberries. It is unstable to alkali and moderately stable to weak organic acids. It should be stored in glass, tin, or aluminum containers. It is soluble in fixed oils and in propylene glycol. It is used in flavors for strawberry note and has application in candy, beverages, and ice cream at 6–20 ppm. It is also termed aldehyde c-16.

製造方法

By reaction of acetophenone and the ethyl ester of monochloroacetic acid in the presence of an alkaline condensing agent.

一般的な説明

Clear, colorless to yellowish liquid with a strawberry-like odor.

空気と水の反応

Insoluble in water.

反応プロフィール

Esters, such as Ethyl 3-methyl-3-phenylglycidate, react with acids to liberate heat along with alcohols and acids. Strong oxidizing acids may cause a vigorous reaction that is sufficiently exothermic to ignite the reaction products. Heat is also generated by the interaction of esters with caustic solutions. Flammable hydrogen is generated by mixing esters with alkali metals and hydrides.

火災危険

Ethyl 3-methyl-3-phenylglycidate is probably combustible.

製品名

Strawberry pure (Givaudan)

安全性プロファイル

Mddly toxic by ingestion. Mutation data reported. Combustible liquid. When heated to decomposition it emits acrid smoke and irritating fumes. See also ALDEHYDES.