US4148624A
Expired / Lapsed
US
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Glycylmethylphosphinic acids and derivatives as plant growth regulants
Assignee: Novartis Corp
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Filing: 1978-03-30
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Granted: 1979-04-10
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Expires: 1998-03-30
Abstract
Abstract The invention is concerned with a new process for preparing bis(carboxyalkylamino) phosphinic acids and derivatives thereof, and especially deals with the novel compound bis(glycylmethyl) phosphinic acid of the formula <IMAGE> and derivatives thereof including those substituted on the NH-group. This acid, salts and derivatives thereof have plant-growth regulating and herbicidal properties.
Inventors
- 👤 Ludwig Maier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:53
CPC Classifications
A; A01; A01N; A01N57/00; A01N57/18; C; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/30; C07F9/301
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
92 words
Glycylmethylphosphinic acid derivatives of the formula Ia ##STR30## and the salts thereof, wherein R represents hydrogen, C 1 -C 6 alkyl or mono- to triphenylated methyl, R' represents --OH or --OR 1 , wherein R 1 represents a cation, substituted or unsubstituted C 1 -C 6 alkyl, cycloalkyl, ##STR31## in which each of R 2 and R 3 independently represents hydrogen, lower alkyl or cyanoalkyl, R 3 additionally represents phenyl which is unsubstituted or substituted by halogen lower alkyl or nitro, and R" represents hydrogen, a cation, alkyl, alkenyl, aryl or aralkyl.
Claim 2
Dependent Claim
92 words
Glycylmethylphosphinic acid derivatives of the formula Ia ##STR30## and the salts thereof, wherein R represents hydrogen, C 1 -C 6 alkyl or mono- to triphenylated methyl, R' represents --OH or --OR 1 , wherein R 1 represents a cation, substituted or unsubstituted C 1 -C 6 alkyl, cycloalkyl, ##STR31## in which each of R 2 and R 3 independently represents hydrogen, lower alkyl or cyanoalkyl, R 3 additionally represents phenyl which is unsubstituted or substituted by halogen lower alkyl or nitro, and R" represents hydrogen, a cation, alkyl, alkenyl, aryl or aralkyl.
Claim 3
Dependent Claim
19 words
Glycylmethylphosphinic acid derivatives of the formula Ia of claim 1, wherein R represents a benzyl, diphenylmethyl or triphenylmethyl radical.
Claim 4
Dependent Claim
13 words
Bis(glycylmethyl)phosphinic acid of the formula ##STR32## and the salts, esters and amides thereof.
Claim 5
Dependent Claim
13 words
Bis(glycylmethyl)phosphinic acid of the formula ##STR32## and the salts, esters and amides thereof.
Claim 6
Dependent Claim
36 words
A herbicidal and plant growth-regulating composition which contains as active ingredient an effective amount of a glycylmethylphosphinic acid derivative of the formula Ia of claim 1 or a salt thereof, together with a suitable carrier therefor.
Claim 7
Dependent Claim
28 words
A method of selectively controlling weeds in post-emergent application which comprises applying thereto a herbicidally effective amount of the active compound of the formula Ia of claim 1.
Claim 8
Dependent Claim
42 words
A method of inhibiting the growth of mono- and dicotyledonous plants which comprises applying to the plants or the locus thereof either before or after emergence, a plant growth inhibiting amount of the active compound of the formula Ia of claim 1.
References Cited (Backward Citations)
US3160632A
Cited
CH475287A
Cited
US3359266A
Cited
US3455675A
Cited
US3850608A
Cited
US4062669A
Cited
US3894861A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-04-09 | 1982-10-09 | 1983-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-04-09 | 1986-10-09 | 1987-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-04-09 | 1990-10-09 | 1991-04-10 | $7700.00 | Window Closed / Lapsed |