Patent · US Expired

Phenylalkenylcarboxylic acids and their esters

US5123955A · kind A · utility

3Cited by

5References

3Claims

0Family size

Inventors

Peter Plath · Bischofswerda, DE
Karl Eicken · Monsheim, DE
Norbert Goetz
Jochen Wild · Ruppertsberg, DE
Norbert Meyer · Langenburg, DE
Bruno Wuerzer · Otterstadt, DE

Key dates

Filing date	Oct 23, 1989
Grant date	Jun 23, 1992
Priority date	—
Expiry date	Oct 23, 2009

Classification

Technology area (CPC A)Human Necessities
CPC primaryA01N37/32
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

Phenylalkenylcarboxylic acid and esters thereof of the general formula I ##STR1## where X is hydrogen or fluorine, R.sup.1 is hydrogen, C.sub.1 -C.sub.6 -alkyl, C.sub.5 - or C.sub.6 -cycloalkyl, (C.sub.1 -C.sub.4 -alkoxy)-C.sub.2 -C.sub.4 -alkyl or (C.sub.1 -C.sub.4 -alkylthio)-C.sub.2 -C.sub.4 -alkyl; W is a divalent radical --CH.dbd.CR.sup.2 --; --CH.dbd.CY--; --CH.dbd.CR.sup.2 --CH.sub.2 --; --CH.dbd.CR.sup.2 --CH.dbd.CR.sup.3 -- or ##STR2## where Y is chlorine or bromine and R.sup.2 and R.sup.3 are each hydrogen or C.sub.1 -C.sub.4 -alkyl, with the proviso that X is not F when W is --CH.dbd.CR.sup.2 --, their manufacture, and their use as herbicides.

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