DICYCLIC KETONE, FLAVOR COMPOSITION, METHOD FOR APPLYING, IMPROVING, ENRICHING OR MODIFYING OF FLAVOR CHARACTERISTIC OF FLAVORED PRODUCT, AND METHOD AND STARTING COMPOSITION FOR PRODUCING FLAVOR COMPOSITION, FLAVORED PRODUCT AND DICYCLIC KETONE

摘要

PROBLEM TO BE SOLVED: To obtain the subject new compound having woody aroma, accompanied with natural leather type connotation, making a human remind a smell of fresh suede leather and useful in a flavor field. ;SOLUTION: This invention contains a compound of formula I (acetyl substituting group exists at either 2nd site or 3rd site of a ring) or a mixture of the compound, e.g. 1-(1,2,3,4,5,6,7,8-octahydro-7,8,8-trimethyl2-naphthalenyl)-1- ethanone. The compound of formula I is obtained by subjecting a compound of formula II to Diels-Alder reaction in the presence of methyl vinyl ketone, subsequently dehydrating and subjecting to cyclization reaction. The compound of formula II is also a new compound and obtained by starting from epoxymyrcene and subjecting to Grignard reaction. A smell characteristic is applied, improved, enriched and modified by adding the compound of formula I to the flavor composition as a flavor increasing component.;COPYRIGHT: (C)2000,JPO