AROMATIC COMPOUND, APPLICATION, IMPROVEMENT, INCREASE OR MODIFICATION OF FRAGRANT CHARACTERISTIC, PERFUME COMPOSITION AND PERFUME-ADDED PRODUCT, PRODUCTION OF THE AROMATIC COMPOUND AND STARTING COMPOUND FOR THE AROMATIC COMPOUND AND PRODUCTION OF THE STARTING COMPOUND

摘要

PURPOSE: To obtain a new compound excellent in oxidation stability, having fragrant characteristics advantageous from the viewpoint of fragrance tenacity and useful as a perfume. ;CONSTITUTION: A compound of formula I [X is CHO, a group of formula II (R' is a 1-4C alkyl, a 2-4C alkylene); R² is H, methyl; R¹, R³ are different from each other and are each H or methyl], a compound of formula III (the tertiary butyl group is placed at the 5 or 6-position of an aromatic ring; Y is H, CH₂ CHO or the like), and a compound of formula IV (R is H, methyl). For example, 3-(5-tertary butyl-2-methyl-1-phenyl)propanal. The compound of formula I is obtained by hydrolyzing an ether ester of formula V with an acid and subsequently acetalizing the obtained aldehyde.;COPYRIGHT: (C)1995,JPO