Patent · US Expired

1-Methyl-5-alkylsulfonyl-, 1-methyl-5-alkylsulfinyl- and 1-methyl-5-alkylthio- substituted pyrazolylpyrazoles, processes for their preparation and their use as herbicides

US6232271A · kind A · utility

2Cited by

1References

15Claims

0Family size

Assignee

Hoechst Schering Agrevo GmbH · DE

Inventors

Alfred Angermann · Kriftel, DE
Helga Franke · Berlin, DE
Rainer Preuss · Hofheim, DE
Uwe Hartfiel · Berlin, DE
Holger Wagner · Mettenberg, DE
Hermann Bieringer · Eppstein, DE
Thomas Auler · Bad Soden, DE
Christopher Hugh Rosinger · Hofheim, DE

Key dates

Filing date	Nov 20, 1998
Grant date	May 15, 2001
Priority date	—
Expiry date	Nov 20, 2018

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07D231/18
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

1-Methyl-5-alkylsulfonyl-, 1-methyl-5-alkylsulfinyl- and 1-methyl-5-alkylthio-substituted pyrazolylpyrazoles, processes for their preparation and their use as herbicides 1 -Methyl-5-alkylsulfonyl-, 1-methyl-5-alkylsulfinyl- and 1-methyl-alkylthio-substituted pyrazolylpyrazoles of the formula (I) are described as herbicidally active compounds. ##STR1## In this formula (I), R.sup.1 and R.sup.4 are various substituents, R.sup.2 is halogen or cyano, R.sup.3 is cyano, nitro or thiocarbamoyl and n is 0, 1 or 2.

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