2-n-pentylidene-5-n-pentylcyclopentanone 在
钯氮气 、 silica gel 作用下,
以
乙醇 为溶剂,
反应 7.0h,
以to give 14.9 g of 2,5-di-n-pentylcyclopentanone with a purity of 99.4%的产率得到2.5-Dipentyl-cyclopentanon
A novel cyclopentanone derivative having a cyclopentanone or cyclopentanol ring having substituents at the 2- and 5-positions is provided. The cyclopentanone derivative preferably has 13 to 17 carbon atoms. A perfume composition comprising the cyclopentanone derivative emits a flora fragrance emphasizing a natural and fresh feeling. It is useful for perfuming a variety of toiletries and households. A process for preparing the above-mentioned cyclopentanone derivative is also provided by which the cyclopentanone derivative can be obtained in a practically acceptable yield.
Lardelli,G. et al., Recueil des Travaux Chimiques des Pays-Bas, 1967, vol. 86, p. 481 - 503
作者:Lardelli,G. et al.
DOI:——
日期:——
EP1420005
申请人:——
公开号:——
公开(公告)日:——
Cyclopentanone derivative
申请人:Fujisawa Hiroshi
公开号:US20050009928A1
公开(公告)日:2005-01-13
A novel cyclopentanone derivative having a cyclopentanone or cyclopentanol ring having substituents at the 2- and 5-positions is provided. The cyclopentanone derivative preferably has 13 to 17 carbon atoms. A perfume composition comprising the cyclopentanone derivative emits a flora fragrance emphasizing a natural and fresh feeling. It is useful for perfuming a variety of toiletries and households. A process for preparing the above-mentioned cyclopentanone derivative is also provided by which the cyclopentanone derivative can be obtained in a practically acceptable yield.