Claims
- 1. A compound of the formula (I): ##STR31## wherein R.sup.1 represents a halo-(C.sub.1 to C.sub.6)-alkoxy group at the ortho or meta position; R.sup.2 and R.sup.3, which may be either the same or different, each represents a hydrogen atom, a halogen atom, a (C.sub.1 to C.sub.2)-alkyl group, a halo-(C.sub.1 to C.sub.2)-alkyl group, a (C.sub.1 to C.sub.2)-alkoxy group, a nitro group, a (C.sub.1 to C.sub.2)-alkylthio group, a halo-(C.sub.1 to C.sub.2)-alkylthio group or a halo-(C.sub.1 to C.sub.2)-alkoxy group; and R.sup.4 represents a (C.sub.1 to C.sub.2)-alkyl group; provided that both of R.sup.2 and R.sup.3, if each representing a substituent other than a hydrogen atom, are not at the ortho position for the pyrimidine ring at the same time.
- 2. A compound according to claim 1, wherein R.sup.1 represents a trihalomethoxy group at the meta position.
- 3. A compound according to claim 1, wherein R.sup.1 represents a trifluoromethoxy group at the meta position.
- 4. A compound according to claim 1, wherein R.sup.2 and R.sup.3, which may be either the same or different, each represents a hydrogen atom, a halogen atom, a (C.sub.1 to C.sub.2)-alkyl group, a halo-(C.sub.1 to C.sub.2)-alkyl group or a (C.sub.1 to C.sub.2)-alkoxy group, at the meta or para position.
- 5. A compound according to claim 1, wherein R.sup.2 and R.sup.3, which may be either the same or different, each represents a hydrogen atom, a halogen atom or a trifluoromethyl group, at the meta or para position; and R.sup.4 represents a methyl group.
- 6. A compound according to claim 1, wherein R.sup.2 and R.sup.3, which may be either the same or different, each represents a fluorine atom, a chlorine atom or a trifluoromethyl group, at the meta or para position; and R.sup.4 represents a methyl group.
- 7. A compound according to claim 1, wherein R.sup.3 represents a hydrogen atom.
- 8. A compound according to claim 1, wherein R.sup.3 represents a hydrogen atom and R.sup.2 is at the para position.
- 9. 2-(4-Trifluoromethylphenyl)-4-(3-trifluoromethoxyphenyl)-5-methoxypyrimidine.
- 10. 2-(4-Fluorophenyl)-4-(3-trifluoromethoxyphenyl)-5-methoxypyrimidine.
- 11. 2-(4-Chlorophenyl)-4-(3-trifluoromethoxyphenyl)-5-methoxypyrimidine.
- 12. A herbicidal composition which comprises as an active ingredient a herbicidally effective amount of the compound (I) according to claim 1, and an inert carrier or a diluent.
- 13. A method for controlling undesired weeds, which comprises applying a herbicidally effective amount of the compound (I) according to claim 1 and an inert carrier or a diluent to an area where undesired weeds grow or will grow.
Priority Claims (7)
Number |
Date |
Country |
Kind |
63-199155 |
Aug 1988 |
JPX |
|
63-243539 |
Sep 1988 |
JPX |
|
1-276593 |
Oct 1989 |
JPX |
|
1-276594 |
Oct 1989 |
JPX |
|
1-276595 |
Oct 1989 |
JPX |
|
1-276596 |
Oct 1989 |
JPX |
|
2-23430 |
Jan 1990 |
JPX |
|
Parent Case Info
This is a continuation of application Ser. No. 07/602,833 filed Oct. 23, 1990, still pending, which is a continuation-in-part of (1) application Ser. No. 07/544,089 filed Jun. 22, 1990, now abandoned, which is a continuation of application Ser. No. 07/391,016 filed Aug. 9, 1989, now abandoned, and (2) application Ser. No. 07/508,446 filed Apr. 13, 1990, now abandoned, which is a divisional of application Ser. No. 07/391,016 filed Aug. 9, 1989, now abandoned.
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
5022915 |
Prisbylla |
Jun 1991 |
|
Foreign Referenced Citations (2)
Number |
Date |
Country |
0354766 |
Feb 1990 |
EPX |
60-72808 |
Apr 1985 |
JPX |
Non-Patent Literature Citations (5)
Entry |
Takahashi et al., Journal of Heterocyclic Chemistry, vol. 23, pp. 77-80 (1986). |
Bredereck et al., Chem. Ber. 97, 3397 (1964). |
Zumach et al., Angew Chem. Internat. Edit., 9, 54 (1970). |
Becker et al., J. Org. Chem. 28, 1986 (1963). |
Truce et al., J. Am. Chem. Soc. 77, 5063 (1955). |
Divisions (1)
|
Number |
Date |
Country |
Parent |
391016 |
Aug 1989 |
|
Continuations (2)
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Number |
Date |
Country |
Parent |
602833 |
Oct 1990 |
|
Parent |
391016 |
Aug 1989 |
|
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
544089 |
Jun 1990 |
|