N-(Unsubstituted or substituted pyridyl)aminomethylene-diphosphonic acids, herbicidal compositions containing same, their use for herbicides, and process for preparing same
US4447256A · kind A · utility
12Cited by
4References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 29, 1980 |
| Grant date | May 8, 1984 |
| Priority date | — |
| Expiry date | Jul 29, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F9/58
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
N-(Unsubstituted or substituted pyridyl)aminomethylene-diphosphonic acids represented by the formula: ##STR1## wherein each of R.sup.1, R.sup.2 and R.sup.3 is independently hydrogen or lower alkyl, and each of X and Y is independently hydrogen, halogen, nitro, acetamino, carboxyl, lower alkyl, methoxycarbonyl, hydroxyl or methoxy, and salts thereof, have effective herbicidal effects on postemergence of plants and selective inactivity against cotton plants.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.