Dimethylbenzene derivatives

Perfume compositions – Perfume compositions – Ring containing active ingredient

Reexamination Certificate

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C512S025000

Reexamination Certificate

active

07129205

ABSTRACT:
Compounds of the formula (I):wherein X is a —(C═CH2)— group or a —CH(CH3)— group, with the proviso that when X is a —(C═CH2)— group, R1is a C1-10alkyl group or a C2-10alkenyl group and when X is a —CH(CH3)— group, R1is hydrogen, a saturated or unsaturated, linear or a branched C1-10alkyl group, a C1-10acyl group, a C1-10cycloalkyl group or an aryl group are useful as perfumes.

REFERENCES:
patent: 3590103 (1971-06-01), Tieman et al.
patent: 6376457 (2002-04-01), Markert et al.
patent: 1 920 672 (1969-11-01), None
patent: 197 14 041 (1998-10-01), None
patent: 1 538 619 (1968-09-01), None
patent: 2001348308 (2001-12-01), None
patent: WO 98/45236 (1998-10-01), None
E. Glyde, R. Taylor: “Electrophilic Aromatic Reactivities via Pyrolysis of 1-Arylethyl Acetates”, Journal of the Chemical Society, Perkin Transactions 2., 1977, pp. 1537-1541, XP002186110, Chemical Society. Letchworth., GB, ISSN: 1472-779X, Darstellung von, 1-(2,4-Dimethylphenyl) ethylacetat, p. 1540.

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