Copper-Catalyzed Cyclization-Fragmentations of Enynols
作者:Charles Fehr、Magali Vuagnoux、Horst Sommer
DOI:10.1002/chem.201002314
日期:2011.3.28
Pt and Au are going out of fashion: The [Cu(CH3CN)4][BF4] species effectively catalyzes the cyclization–fragmentation of 5‐en‐1‐yn‐3‐ols. The reactivity of 6‐en‐1‐yn‐4‐ols greatly depends on the catalyst used (see scheme). An unusual fragmentation and metathesis reactions of 6‐en‐1‐yn‐4‐ols have also been detected.
Pt和Au不合时宜:[Cu(CH 3 CN)4 ] [BF 4 ]物种有效催化5烯1炔3醇的环化片段化。6 en 1 yn 4 ols的反应性在很大程度上取决于所使用的催化剂(参见方案)。还检测到6 en 1 yn 4 ols的异常断裂和易位反应。
[EN] ODORANTS AND COMPOSITIONS COMPRISING ODORANTS<br/>[FR] SUBSTANCES ODORANTES ET COMPOSITIONS COMPRENANT DES SUBSTANCES ODORANTES
申请人:S H KELKAR AND COMPANY LTD
公开号:WO2021148940A1
公开(公告)日:2021-07-29
The present invention relates to new classes of odorous tetrahydropyran-4-ol derivatives of formula X and/or alkene derivatives thereof of formula Y1 and Y2 which are useful as fragrance or flavor materials in particular in providing camphoraceous, woody, earthy, and/or patchouli-like notes to perfume, aroma or deodorizing/masking compositions. The present invention also relates to fragrance, flavor and/or deodorizing/masking compositions comprising said new classes of odorous tetrahydropyran-4-ol derivatives and/or alkene derivatives thereof.