Penten-Derivate, deren Herstellung und Verwendung

摘要

The invention concerns pentene derivatives of the general formula (I), in which, independently of each other, R<1> is hydrogen or a methyl group, R<2> and R<3> are hydrogen or an alkyl group with 1 to 5 C-atoms, R<4> is hydrogen or a CHR<5>R<6> group (R<5> and R<6> being hydrogen or an alkyl group with 1 to 6 C-atoms) and X is a CO or CHOH group, with the provision that (a) at least one of the groups R<2> and R<3> is an alkyl group and (b) 2-methyl-4-(2,2,3-trimethyl-3-cyclopenten-1-yl)-4-penten-1-ol is excluded. Such compounds are odoriferous substances with interesting fragrances and high diffusion power.