10-ウンデセナール 化学特性,用途語,生産方法
外観
無色〜うすい黄色, 澄明の液体
溶解性
エタノール及びアセトンに溶け、水にほとんど溶けない。
用途
シ トラス系香料 と して多 くの化粧品香料,食品香料に用いられる。
用途
有機合成(和光試薬時報Vol.63 No.4,p.26(1995))。
使用上の注意
不活性ガス封入
化学的特性
10-Undecenal was identified,
for example, in coriander leaf extract. It is a colorless liquid with a fatty,
green, slightly metallic, heavy, floral odor. The aldehyde can be synthesized from
undecylenic acid, for example, by hydrogenation of the acid chloride (Rosenmund
reduction) or by reaction with formic acid in the vapor phase in the presence of
titanium dioxide. In perfumery, 10-undecenal is one of the aldehydes essential
for creating the “aldehydic note.”
Mixtures containing undecenals with the double bond in other positions (9-,
8-, 7-) are also marketed and used in fragrances, for example, Aldehyde C
11 Iso
(Givaudan), Intreleven aldehyde (IFF).
天然物の起源
Reported found in coriander leaf (Coriandrum sativum L.).
使用
10-Undecylenic Aldehyde is derived from the reduction of Undecylenic Acid (U788820) which is used for the manufacture of pharmaceuticals, cosmetics and perfumery, including antidandruff shampoos, antimicrobial powders and as a musk in perfumes and aromas.
製造方法
By oxidation of the corresponding alcohol or reduction of the corresponding acid; by passing vapors of formic acid and
undecylenic acid over TiO2 at 250°C under pressure; by passing vapors of undecylenic acid and methanol over a manganese dioxidebased
catalyst; or by reduction of ethyl undecylenate with lithium hydride and sodium in tetrahydrofuran solution at very low temperature
(–50°C).
安全性プロファイル
LOW toxicity by
ingestion and skin contact. A skin irritant.
Combustible liquid. When heated to
decomposition it emits acrid smoke and
irritating fumes. See also ALDEHYDES.
10-ウンデセナール 上流と下流の製品情報
原材料
準備製品