40942-73-2

Usage

InChI:InChI=1/C13H22O2/c1-3-4-5-6-12-11(9-10(2)14)7-8-13(12)15/h11-12H,3-9H2,1-2H3

Upstream product

• 40942-71-0 3-oxo-2-(3'-oxo-2'-pentyl-cyclopentyl)-butyric acid ethyl ester 
• 97724-00-0 opt.-inakt.-<6-Pentyl-1-oxa-4-thiaspiro<4,4>nonyl-(7)>-aceton 

Relevant academic research and scientific papers

Precursors for fragrant ketones and fragrant aldehydes

The present invention refers to fragrance precursors of formula I for a fragrant ketone of formula II and one or more fragrant aldehydes or ketones of formula III and IV, These fragrance precursors are useful in perfumery, especially in the fine and functional perfumery.

Perfumed compositions

Perfumed compositions which may, and in most cases especially do, contain one or more odorant perfume ingredients in conjunction with up to 20%, by weight of said perfumed compositions, of the compound 2-n-pentyl-3-(2-oxopropyl)-1-cyclopentanone which is free from garlicky odors and which has a magnolia or magnolia-like odor, and which possesses the property of imparting a magnolia odor to such perfumed and odorant compositions.

Process for the preparation of 2-n-pentyl-3-(2-oxopropyl)-1-cyclopentanone

The valuable odoriferous material 2-n-pentyl-3-(2-oxopropyl)-1-cyclopentanone is prepared by a process which comprises hydrolysing and decarboxylating a compound of the formula STR1 wherein R represents a hydrocarbyl group, with water under pressure and in an initially substantially neutral medium. The use of 2-n-pentyl-3-(2-oxopropyl)-1-cyclopentanone as an odorant is also disclosed.