翻訳と辞書 |
Rose oxide
Rose oxide is an organic compound of the pyran class and the monoterpene class and a fragrance found in roses and rose oil. The compound has a ''cis''- and a ''trans''-isomer, each with a (+)- and (−)-stereoisomer, but only the (−)-''cis'' isomer (odor threshold 0.5 ppb) is responsible for the typical rose (floral green) fragrance.〔Dieter Martinetz und Roland Hartwig: Taschenlehrbuch der Riechstoffe: ein Lexikon von A–Z. Verlag Harri Deutsch 1998; ISBN 3-8171-1539-3; S. 330ff.〕 Rose oxide also contributes to the flavor of some fruits such as lychee and Gewürztraminer. : Rose oxide is produced industrially beginning with photooxygenation of citronellol to give the allyl hydroperoxide which is then reduced with sodium sulfite to provide the diol. Ring-closure with sulfuric acid forms both the ''cis''- and ''trans''-isomers in equal amounts. : ==References==
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Rose oxide」の詳細全文を読む
スポンサード リンク
翻訳と辞書 : 翻訳のためのインターネットリソース |
Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.
|
|