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.
有价值的芳香材料2-戊基-3-(2-羧丙基)-1-
环戊酮是通过一种工艺制备的,该工艺包括在初始基本中性介质中在压力下用
水水解和脱羧化式化合物的过程,该化合物的结构式为##STR1##其中R代表一个烃基。文中还披露了2-戊基-3-(2-羧丙基)-1-
环戊酮作为一种
香料的用途。