Claims
- 1. A compound of formula I ##STR50## wherein Hal is halogen,
- R.sub.1 is selected from the group consisting of hydrogen, methyl and --COR.sub.5,
- R.sub.2 is ##STR51## R.sub.3 is hydrogen, halogen, trifluoromethyl, trichloromethyl, --COOH, --COOCH.sub.3, --OH or nitro,
- R.sub.4 is hydrogen, halogen, trifluoromethyl, methoxy or methyl,
- R.sub.5 is C.sub.1 -C.sub.6 alkyl, unsubstituted or substituted by one or more halogen atoms, C.sub.1 -C.sub.6 alkyl which is interrupted by oxygen or sulfur, C.sub.1 -C.sub.6 alkyl which is substituted by one or more halogen atoms and interrupted by oxygen or sulfur; C.sub.2 -C.sub.4 alkenyl, unsubstituted or substituted by one or more halogen atoms; phenyl, benzyl, or phenyl or benzyl each substituted by halogen, methyl, trifluoromethyl or trichloromethyl; or a 3- to 6-membered cycloalkyl radical or a cycloalkyl radical which is substituted by one or more halogen atoms or methyl groups.
- 2. A compound of formula I according to claim 1, wherein
- Hal is chlorine or bromine;
- R.sub.1 is hydrogen; and
- R.sub.3 and R.sub.4 are each independently of the other hydrogen, halogen or trifluoromethyl.
- 3. A compound of formula I according to claim 1, wherein
- Hal is chlorine;
- R.sub.1 is hydrogen; and
- R.sub.3 and R.sub.4 are each independently of the other hydrogen, halogen or trifluoromethyl.
- 4. A compound of formula I according to claim 1, wherein
- Hal is chlorine;
- R.sub.1 is hydrogen;
- R.sub.3 is hydrogen or 3-chloro; and
- R.sub.4 is hydrogen or 5-trifluoromethyl.
- 5. The compound 1-(tetrahydrofuroyl-2)-1-(pyridinyl-2)-2-(2,6-dichloroisonicotinoyl)-hydrazine according to claim 1.
- 6. A composition for protecting plants against attack by microorganisms which contains as active component at least one compound of formula (I) ##STR52## wherein Hal is halogen,
- R.sub.1 is selected from the group consisting of hydrogen, methyl and --COR.sub.5,
- R.sub.2 is ##STR53## R.sub.3 is hydrogen, halogen, trilfluoromethyl, trichloromethyl, --COOH, --COOCH.sub.3, --OH or nitro,
- R.sub.4 is hydrogen, halogen, trifluoromethyl, methoxy or methyl,
- R.sub.5 is C.sub.1`-C.sub.6 alkyl, unsubstituted substituted by one or more halogen atoms, C.sub.1 -C.sub.6 alkyl which is interrupted by oxygen or sulfur, C.sub.1 -C.sub.6 alkyl which is substituted by one or more halogen atoms and interrupted by oxygen or sulfur; C.sub.2 -C.sub.4 alkenyl, unsubstituted or substituted by one or more halogen atoms; phenyl, benzyl, or phenyl or benzyl each substituted by halogen, methyl, trifluoromethyl or trichloromethyl; or a 3- to 6-membered cycloalkyl radical or a cycloalkyl radical which is substituted by one or more halogen atoms or methyl groups.
- 7. A composition of claim 6 wherein
- Hal is chlorine or bromine,
- R.sub.1 is hydrogen, and
- R.sub.3 and R.sub.4 are each independently of the other hydrogen, halogen or trifluoromethyl.
- 8. A composition of claim 6 which contains 1-(tetrahydrofuroyl-2)-1-(pyridinyl-2)-2-(2,6-dichloroisonicotinoyl)-hydrazine as the active component.
- 9. A method of protecting plants from attack by photopathogenic microorganisms which comprises applying, to said plants or the locus thereof, an effective amount of a compound of formula (I) ##STR54## wherein Hal is halogen,
- R.sub.1 is selected from the group consisting of hydrogen, methyl and --COR.sub.5,
- R.sub.2 is ##STR55## R.sub.3 is hydrogen, halogen, trifluoromethyl, trichloromethyl, --COOH, --COOCH.sub.3, --OH or nitro,
- R.sub.4 is hydrogen, halogen, trifluoromethyl, methoxy or methyl,
- R.sub.5 is C.sub.1 -C.sub.6 alkyl, unsubstituted or substituted by one or more halogen atoms, C.sub.1 -C.sub.6 alkyl which is interrupted by oxygen or sulfur, C.sub.1 -C.sub.6 alkyl which is substituted by one or more halogen atoms and interrupted by oxygen or sulfur; C.sub.2 -C.sub.4 alkenyl, unsubstituted or substituted by one or more halogen atoms; phenyl, benzyl, or phenyl or benzyl each substituted by halogen, methyl, trifluoromethyl or trichloromethyl; or a 3- to 6-membered cycloalkyl radical or a cycloalkyl radical which is substituted by one or more halogen atoms or methyl groups.
- 10. A method of claim 9 wherein Hal is chlorine or bromine;
- R.sub.1 is hydrogen; and
- R.sub.3 and R.sub.4 are each independently of the other hydrogen, halogen or trifluoromethyl.
- 11. A method of claim 9 wherein the plants are immunized against attack by phytopathogenic microorganisms.
- 12. A method of claim 10 wherein the plants are immunized against attack by phytopathogenic microorganisms.
- 13. A method according to claim 9 wherein the phytopathogenic microorganisms are fungi.
- 14. A method according to claim 13, wherein the fungi are organisms of the classes Ascomycetes, Basidiomycetes or fungi imperfecti.
- 15. A method according to claim 9, wherein the phytopathogenic microorganisms are bacteria.
- 16. A method according to claim 9, wherein the phytopathogenic microorganisms are viruses.
- 17. A method of claim 9 wherein the compound of formula (I) is applied at a rate from 50 grams to 5 kilograms per hectare.
- 18. A method of claim 17 wherein the compound of formula (I) is applied at a rate from 100 grams to 2 kilograms per hectare.
- 19. A method of claim 18 wherein the compound of formula (I) is applied at a rate from 200 grams to 600 grams per hectare.
Priority Claims (1)
Number |
Date |
Country |
Kind |
1629/87 |
Apr 1987 |
CHX |
|
Parent Case Info
This is a divisional of Ser. No. 403,844, filed on Sep. 1, 1989, which is a continuation of Ser. No. 187,161, filed on Apr. 28, 1988, now abandoned, now U.S. Pat. No. 5,015,649 issued May 14, 1991.
US Referenced Citations (4)
Foreign Referenced Citations (2)
Number |
Date |
Country |
0253468 |
Jan 1988 |
EPX |
0711756 |
Jul 1954 |
GBX |
Non-Patent Literature Citations (2)
Entry |
Chem. Abstr. 86:106533s (1977). |
Chem. Abstr. 57:4769a (1962). |
Divisions (1)
|
Number |
Date |
Country |
Parent |
403844 |
Sep 1989 |
|
Continuations (1)
|
Number |
Date |
Country |
Parent |
187161 |
Apr 1988 |
|