Use of unsaturated esters as perfuming ingredients

Details Use of unsaturated esters as perfuming ingredients Use of unsaturated esters as perfuming ingredients

2005-08-02

2005-08-02

Cole, Monique T. (Department: 1743)

Perfume compositions

Perfume compositions

Oxygen containing active ingredient

C512S026000, C512S027000, C560S190000, C560S205000, C560S221000, C560S076000, C560S095000, C560S201000

Reexamination Certificate

active

06924262

ABSTRACT:
The compound of formulain which the wavy line represents a bond having a configuration of the type (Z) or (E), or a mixture of the two configurations; R1represents a hydrogen atom, a C1to C4linear or branched alkyl radical, a methoxy or ethoxycarbonyl radical, or an aryl radical, and R2represents a methyl or ethyl group, possess interesting organoleptic properties and can be advantageously used for the preparation of perfuming compositions to which it gives, in particular, a very natural connotation of the pear type.

REFERENCES:
patent: 4228265 (1980-10-01), Ohishi et al.
patent: 4510319 (1985-04-01), Willis et al.
patent: 5668102 (1997-09-01), Severns et al.
N. Nazarov et al., “Rearrangement of the Allylic System: Action of hydrogen chloride on methyl propyl vinyl carbinol and 3-mthyl-3-propyl allyl alcohol and isomeriation of the corresponding chlorides in exchange reactions”, Chemical Abstracts, vol. 43, No. 10—Organic Chemistry, col. 114-115 (1949).
Abstract: Yasumasa Kuwahara et al., Pherome study on acarid mites. Part IX. Syntheses of alarm pheromone analogs of the mold mite, Tyrophagus putrescentiae, and their biological activities, Agric. Biol. Chem. vol. 46 No. 7, pp. 1855-1860.
XP-002259231: Database accession no. 43:579, Database Caplus 'Online!, Chemical Abstracts Service, Columbus, Ohio (1949).

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