Patent · US Expired

Heterocyclic compounds

US4941909A · kind A · utility

19Cited by
1References
19Claims
0Family size

Assignee

Inventors

Key dates

Filing dateFeb 14, 1989
Grant dateJul 17, 1990
Priority date
Expiry dateFeb 14, 2009

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC07D409/12
  • WIPO fieldOrganic fine chemistry
  • WIPO sectorChemistry

Abstract

The invention is concerned with novel compounds of the formula ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 have the significances given in the description, as well as enol ethers and salts thereof and their manufacture, weed control compositions which contain such compounds as active substances and the use of the active substances or compositions for the control of weeds. The invention is also concerned with certain starting materials which have herbicidal activity and with weed control compositions containing these.

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