Claims
- 1. A compound of the formula ##STR3## wherein R.sup.1 represents H, F, Cl, Br, CH.sub.3, CF.sub.3, NO.sub.2, CO.sub.2 (C.sub.1 -C.sub.4)alkyl, or CON(C.sub.1 -C.sub.4)alkyl.sub.2 ;
- R.sup.2 represents H or CH.sub.3 ; and
- R.sup.3 represents F, Cl, Br, NO.sub.2, CO.sub.2 (C.sub.1 -C.sub.4)alkyl, CON(C.sub.1 -C.sub.4)alkyl.sub.2, OCH.sub.3, or OC.sub.2 H.sub.5 ;
- with the provisos that R.sup.1 and R.sup.3 are not simultaneously NO.sub.2, CO.sub.2 (C.sub.1 -C.sub.4)alkyl.sub.2 and R.sup.2 is CH.sub.3 when R.sup.1 and R.sup.3 both represent F, Cl, or Br; and agriculturally acceptable salts thereof.
- 2. A compound of claim 1 wherein R.sup.1 represents F, Cl, Br, or CF.sub.3, R.sup.2 represents H or CH.sub.3, and R.sup.3 represents F, Cl, Br, or OCH.sub.3, with the proviso that R.sup.2 is CH.sub.3 when R.sup.1 and R.sup.3 both represent F, Cl, or Br.
- 3. A compound of claim 2 wherein R.sup.1 and R.sup.3 independently represent F, Cl, or Br and R.sup.2 represents methyl.
- 4. A compound of claim 3: 7-ethoxy-5-fluoromethyl-N-(2,6-dichloro-3-methylphenyl)-1,2,4-triazolo-[1,5-a]pyrimidine-2-sulfonamide and agriculturally acceptable salts thereof.
- 5. A composition containing an agriculturally acceptable adjuvant or carrier in combination with an herbicidally effective amount of a compound of the formula ##STR4## wherein R.sup.1 represents H, F, Cl, Br, CH.sub.3, CF.sub.3, NO.sub.2, CO.sub.2 (C.sub.1 -C.sub.4)alkyl, or CON(C.sub.1 -C.sub.4 alkyl).sub.2 ;
- R.sup.2 represents H or CH.sub.3 ; and
- R.sup.3 represents F, Cl, Br, NO.sub.2, CO.sub.2 (C.sub.1 -C.sub.4)alkyl, CON(C.sub.1 -C.sub.4)alkyl.sub.2, OCH.sub.3, or OC.sub.2 H.sub.5 ;
- with the provisos that R.sup.1 and R.sup.3 are not simultaneously NO.sub.2, CO.sub.2 (C.sub.1 -C.sub.4)alkyl, or CON(C.sub.1 -C.sub.4)alkyl.sub.2 and R.sup.2 is CH.sub.3 when R.sup.1 and R.sup.3 both represent F, Cl, or Br; or an agriculturally acceptable salt thereof.
- 6. A composition of claim 5 wherein R.sup.1 represents F, Cl, Br, or CF.sub.3, R.sup.2 represents H or CH.sub.3, and R.sup.3 represents F, Cl, Br, or OCH.sub.3 with the proviso that R.sup.2 is CH.sub.3 when R.sup.1 and R.sup.3 both represent F, Cl, or Br.
- 7. A composition of claim 6 wherein R.sup.1 and R.sup.3 independently represent F, Cl, or Br and R.sup.2 represents methyl.
- 8. A composition of claim 7 containing 7-ethoxy-5-fluoromethyl-N-(2,6-dichloro-3-methylphenyl)-1,2,4-triazolo[1,5-a]pyrimidine-2-sulfonamide or an agriculturally acceptable salt thereof.
- 9. A method of controlling unwanted vegetation which comprises applying to the vegetation or its locus an effective amount of a compound of the formula ##STR5## wherein R.sup.1 represents H, F, Cl, Br, CH.sub.3, CF.sub.3, NO.sub.2, CO.sub.2 (C.sub.1 -C.sub.4)alkyl, or CON(C.sub.1 -C.sub.4)alkyl.sub.2 ;
- R.sup.2 represents H or CH.sub.3 ; and
- R.sup.3 represents F, Cl, Br, NO.sub.2, CO.sub.2 (C.sub.1 -C.sub.4)alkyl, CON(C.sub.1 -C.sub.4)alkyl.sub.2, OCH.sub.3, or OC.sub.2 H.sub.5 ;
- with the provisos that R.sup.1 and R.sup.3 are not simultaneously NO.sub.2, CO.sub.2 (C.sub.1 -C.sub.4)alkyl, or CON(C.sub.1 -C.sub.4)alkyl.sub.2 and R.sup.2 is CH.sub.3 when R.sup.1 and R.sup.3 both represent F, Cl, or Br; or an agriculturally acceptable salt thereof.
- 10. A method according to claim 9 wherein the compound is applied postemergently.
- 11. A method according to claim 9 wherein R.sup.1 represents F, Cl, Br, or CF.sub.3, R.sup.2 represents H or CH.sub.3, and R.sup.3 represents F, Cl, Br, or OCH.sub.3 with the proviso that R.sup.3 is CH.sub.3 when both R.sup.1 and R.sup.3 represent F, Cl, or Br.
- 12. A method according to claim 11 wherein R.sup.1 and R.sup.3 independently represent F, Cl, or Br and R.sup.2 represents methyl.
- 13. A method according to claim 12 wherein the compound is 7-ethoxy-5-fluoromethyl-N-(2,6-dichloro-3-methylphenyl)-1,2,4-triazolo[1,5-a]pyrimidine-2-sulfonamide or an agriculturally acceptable salt thereof.
- 14. A method of controlling unwanted vegetation in crops which comprises applying to the crop or its locus a selectively effective amount of a compound of the formula ##STR6## wherein R.sup.1 represents H, F, Cl, Br, CH.sub.3, CF.sub.3, NO.sub.2, CO.sub.2 (C.sub.1 -C.sub.4)alkyl, or CON(C.sub.1 -C.sub.4)alkyl.sub.2 ;
- R.sup.2 represents H or CH.sub.3 ; and
- R.sup.3 represents F, Cl, Br, NO.sub.2, CO.sub.2 (C.sub.1 -C.sub.4)alkyl, CON(C.sub.1 -C.sub.4)alkyl.sub.2, OCH.sub.3, or OC.sub.2 H.sub.5 ;
- with the provisos that R.sup.1 and R.sup.3 are not simultaneously NO.sub.2, CO.sub.2 (C.sub.1 -C.sub.4)alkyl, or CON(C.sub.1 -C.sub.4)alkyl.sub.2 and R.sup.2 is CH.sub.3 when R.sup.1 and R.sup.3 both represent F, Cl, or Br; or an agriculturally acceptable salt thereof.
- 15. A method according to claim 14 wherein the compound is applied postemergently.
- 16. A method according to claim 14 wherein R.sup.1 and R.sup.3 independently represent F, Cl, or Br and R.sup.2 represents methyl.
- 17. A method according to claim 16 wherein the compound is 7-ethoxy-5-fluoromethyl-N-(2,6-dichloro-3-methylphenyl)-1,2,4-triazolo[1,5-a]pyrimidine-2-sulfonamide or an agriculturally acceptable salt thereof.
- 18. A method according to claim 14 wherein the crop is wheat.
- 19. A method according to claim 17 wherein the crop is wheat and the compound is applied postemergently.
CROSS-REFERENCE TO RELATED APPLICATION
This is a divisional of application Ser. No. 07/183,571, filed Apr. 19, 1988, now U.S. Pat. No. ,4959,4373, issued Sept. 25, 1990.
US Referenced Citations (10)
Foreign Referenced Citations (3)
Number |
Date |
Country |
48-31894R |
Oct 1973 |
JPX |
8910368 |
Nov 1989 |
WPX |
951652 |
Mar 1964 |
GBX |
Non-Patent Literature Citations (3)
Entry |
Okabe et al., J. Fac. Agr. Kyushu Univ., 19,91-102 (1975). |
Novinson et al., J. Heterocyclic Chemistry, 20, 735, (1983). |
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Divisions (1)
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Number |
Date |
Country |
Parent |
183571 |
Apr 1988 |
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