US4093444A
Expired / Lapsed
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Hydantoin derivatives and methods for regulating plant-growth
Assignee: Pepro SA
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Filing: 1976-09-21
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Granted: 1978-06-06
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Expires: 1996-09-21
Abstract
Abstract Compounds corresponding to the general formula: ##STR1## in which R represents hydrogen, an alkyl radical, a halogenated alkyl radical, a cycloalkyl radical, an optionally substituted aryl radical, an optionally substituted aralkyl radical, an acyl radical, aroyl radical or an optionally substituted heterocycle; R 3 represents hydrogen, aralkyl radical containing 1 to 5 carbon atoms; R 2 represents hydrogen, an alkyl radical (optionally halogenated or substituted by a hydroxyl), a formyl radical, an acyl radical, a carbamoyl radical monosubstituted or disubstituted on the nitrogen; R and R 2 cannot both represent hydrogen; X represents oxygen or sulphur, and their salts, especially their sulphonium salts. Such compounds are useful for modifying the growth of plants.
Inventors
- 👤 Claude Clapot
- 👤 Jean Vial
- 👤 Louis Dumont
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:18
CPC Classifications
C; C07; C07D; C07D233/00; C07D233/54; C07D233/66; C07D233/72; C07D233/76; C07C; C07C323/00; C07C323/50; C07C323/51; C07C323/57; C07C323/58; C07C323/59; C07C2601/00; C07C2601/12; C07C2601/14
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
155 words
A process for modifying the growth of plants wherein the plants are treated with an effective amount of a compound corresponding to the formula: ##STR76## in which A represents hydrogen or halogen, except that the phenyl radical is not 3,5-dihalogenated, B represents hydrogen, an alkyl, alkoxy, NO 2 , CN, COOR' where R' = hydrogen, alkyl, the alkyl part of the radicals containing from 1 to 5 carbon atoms, m is an integer from 0 to 5, n is an integer from 0 to 3; m and n together being at most equal to 5; R 3 represents hydrogen or an alkyl radical containing 1 to 5 carbon atoms; R 2 represents hydrogen, an optionally halogenated or hydroxy substituted C 1 - C 5 alkyl radical, a C 1 - C 5 alkanoyl radical, a carbamoyl radical monosubstituted or disubstituted on the nitrogen by C 1 - C 5 alkyl; or a plant-growth-modifying salt thereof.
Claim 2
Dependent Claim
155 words
A process for modifying the growth of plants wherein the plants are treated with an effective amount of a compound corresponding to the formula: ##STR76## in which A represents hydrogen or halogen, except that the phenyl radical is not 3,5-dihalogenated, B represents hydrogen, an alkyl, alkoxy, NO 2 , CN, COOR' where R' = hydrogen, alkyl, the alkyl part of the radicals containing from 1 to 5 carbon atoms, m is an integer from 0 to 5, n is an integer from 0 to 3; m and n together being at most equal to 5; R 3 represents hydrogen or an alkyl radical containing 1 to 5 carbon atoms; R 2 represents hydrogen, an optionally halogenated or hydroxy substituted C 1 - C 5 alkyl radical, a C 1 - C 5 alkanoyl radical, a carbamoyl radical monosubstituted or disubstituted on the nitrogen by C 1 - C 5 alkyl; or a plant-growth-modifying salt thereof.
Claim 3
Dependent Claim
14 words
A method in accordance with claim 1, wherein the salt is a sulphonium salt.
Claim 4
Dependent Claim
171 words
A process for modifying the growth of plants wherein the plants are treated with a composition having plant-growth regulating properties and comprising an agricultural carrier and as active material a plant-growth regulating amount of at least one compound of the formula: ##STR77## in which A represents hydrogen or halogen, except that the phenyl radical is not 3,5-dihalogenated, B represents hydrogen, an alkyl, alkoxy, NO 2 , CN, COOR' where R' = hydrogen, alkyl, the alkyl part of the radicals containing from 1 to 5 carbon atoms, m is an integer from 0 to 5, n is an integer from 0 to 3; m and n together being at most equal to 5; R 3 represents hydrogen or an alkyl radical containing 1 to 5 carbon atoms; R 2 represents hydrogen, an optionally halogenated or hydroxy substituted C 1 - C 5 alkyl radical, a C 1 - C 5 alkanoyl radical, a carbamoyl radical monosubstituted or disubstituted on the nitrogen by C 1 - C 5 alkyl; or their plant-growth-modifying salts.
Claim 5
Dependent Claim
171 words
A process for modifying the growth of plants wherein the plants are treated with a composition having plant-growth regulating properties and comprising an agricultural carrier and as active material a plant-growth regulating amount of at least one compound of the formula: ##STR77## in which A represents hydrogen or halogen, except that the phenyl radical is not 3,5-dihalogenated, B represents hydrogen, an alkyl, alkoxy, NO 2 , CN, COOR' where R' = hydrogen, alkyl, the alkyl part of the radicals containing from 1 to 5 carbon atoms, m is an integer from 0 to 5, n is an integer from 0 to 3; m and n together being at most equal to 5; R 3 represents hydrogen or an alkyl radical containing 1 to 5 carbon atoms; R 2 represents hydrogen, an optionally halogenated or hydroxy substituted C 1 - C 5 alkyl radical, a C 1 - C 5 alkanoyl radical, a carbamoyl radical monosubstituted or disubstituted on the nitrogen by C 1 - C 5 alkyl; or their plant-growth-modifying salts.
Claim 6
Dependent Claim
6 words
A compound which is 3-naphthyl 5-(2-methylthioethyl)-hydantoin.
Claim 7
Dependent Claim
6 words
A compound which is 3-naphthyl 5-(2-methylthioethyl)-hydantoin.
Claim 8
Dependent Claim
5 words
A compound which is 1-acetyl-3-phenyl-5-(2-methylthioethyl)-hydantoin.
Claim 9
Dependent Claim
5 words
A compound which is 1-acetyl-3-phenyl-5-(2-methylthioethyl)-hydantoin.
Claim 10
Dependent Claim
5 words
The compound which is 1-(β-chloroethoxycarbonyl)-3-phenyl-5-(methylthioethyl)-hydantoin.
Claim 11
Dependent Claim
5 words
The compound which is 1-(β-chloroethoxycarbonyl)-3-phenyl-5-(methylthioethyl)-hydantoin.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1981-06-05 | 1981-12-05 | 1982-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-05 | 1985-12-05 | 1986-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-05 | 1989-12-05 | 1990-06-06 | $7700.00 | Window Closed / Lapsed |