Patent · US Expired

Pentene derivatives, their production and use

US5504066A · kind A · utility

2Cited by

4References

14Claims

0Family size

Assignee

Henkel Kommanditgesellschaft auf Aktien · DE

Inventors

Thomas Markert · Monheim, DE
Volker Porrmann · Hilden, DE
Klaus Bruns · Uerdingen, DE

Key dates

Filing date	Oct 18, 1994
Grant date	Apr 2, 1996
Priority date	—
Expiry date	Oct 18, 2014

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C49/21
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The invention concerns pentene derivatives of the general formula (I), in which, independently of each other, R.sup.1 is hydrogen or a methyl group, R.sup.2 and R.sup.3 are hydrogen or an alkyl group with 1 to 5 C-atoms, R.sup.4 is hydrogen or a CHR.sup.5 R.sup.6 group (R.sup.5 and R.sup.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.sup.2 and R.sup.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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.