Claims
- 1. 4-Phenoxy-.alpha.-phenoxy-alkanecarboxylic acid derivatives of the formula: ##STR19## wherein R.sub.1 represents a halogen atom; and R.sub.2 represents a C.sub.1 -C.sub.10 alkyloxy group, a C.sub.2 -C.sub.4 alkenyloxy group which may be substituted with a chlorine atom, a C.sub.2 -C.sub.4 alkynyloxy group, a C.sub.3 -C.sub.12 cycloalkyloxy group, a benzyloxy group which may be substituted with one or two of a halogen atom, a C.sub.1 -C.sub.4 alkyl group or a nitro group, a phenoxy group which may be substituted with one or two of a halogen atom, a C.sub.1 -C.sub.4 alkyl group or a nitro group.
- 2. 4-Phenoxy-.alpha.-phenoxy-alkanecarboxylic acid derivatives according to claim 1, wherein R.sub.1 represents a chlorine atom or a bromine atom.
- 3. 4-Phenoxy-.alpha.-phenoxy-alkanecarboxylic acid derivatives according to claim 2 wherein R.sub.1 represents a bromine atom.
- 4. 4-Phenoxy-.alpha.-phenoxy-alkanecarboxylic acid derivatives according to claim 1, wherein R.sub.2 represents a C.sub.1 -C.sub.6 alkyloxy group, a C.sub.2 -C.sub.4 alkenyloxy group which may be substituted with a chlorine atom, a C.sub.2 -C.sub.4 alkynyloxy group, a C.sub.5 -C.sub.6 cycloalkyloxy group, a benzyloxy group which may be substituted with one or two of a halogen atom or a C.sub.1 -C.sub.4 alkyl group, or a phenoxy group.
- 5. 4-Phenoxy-.alpha.-phenoxy-alkanecarboxylic acid derivatives according to claim 4, wherein R.sub.1 represents a chlorine atom or a bromine atom.
- 6. 4-Phenoxy-.alpha.-phenoxy-alkanecarboxylic acid derivatives according to claim 5, wherein R.sub.1 represents a bromine atom.
- 7. 4-Phenoxy-.alpha.-phenoxy-alkanecarboxylic acid derivatives according to claim 1, wherein R.sub.2 represents a C.sub.1 -C.sub.6 alkyloxy group.
- 8. 4-Phenoxy-.alpha.-phenoxy-alkanecarboxylic acid derivatives according to claim 7, wherein R.sub.1 represents a chlorine atom or a bromine atom.
- 9. 4-Phenoxy-.alpha.-phenoxy-alkanecarboxylic acid derivatives according to claim 8, wherein R.sub.1 represents a bromine atom.
- 10. A herbicidal composition which contains as an active component a herbicidally effective amount of a 4-phenoxy-.alpha.-phenoxyalkanecarboxylic acid derivative of the formula of claim 1 together with a suitable inert carrier therefor.
- 11. A method for the selective control of grass-like weeds in crops of dicotyledonous and monocotyledonous cultivated plants, which comprises treating the sown cultivated areas before emergence, or the crops of cultivated plants after emergence, with a herbicidally effective amount of a 4-phenoxy-.alpha.-phenoxy-alkanecarboxylic acid derivative of the formula of claim 1.
- 12. A method according to claim 11 which comprises the post-emergent application of the herbicidal composition.
- 13. A method according to claim 11 for the post-emergent control of Avena fatua and Panicum-like weeds in wheat, soya, barley, cotton, or sugar beet.
- 14. A method according to claim 11, wherein said active component is methyl 4-(2'-nitro-4'-bromo-phenoxy)-.alpha.-phenoxy-propionate.
Priority Claims (2)
Number |
Date |
Country |
Kind |
15033/75 |
Nov 1975 |
CHX |
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15034/75 |
Nov 1975 |
CHX |
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Parent Case Info
This is a continuation of application Ser. No. 742,311, filed Nov. 16, 1976, now U.S. Pat. No. 4,106,925.
US Referenced Citations (6)
Foreign Referenced Citations (3)
Number |
Date |
Country |
2000174 |
Aug 1969 |
FRX |
43-14822 |
Jun 1968 |
JPX |
7508016 |
Jan 1976 |
NLX |
Non-Patent Literature Citations (2)
Entry |
Noguchi et al. I, "Germicidal and Fungicidal, etc"; (1975), CA 84, No. 135297g., (1976). |
Noguchi et al. II, "Phenyl Ether Compounds, etc"; (1973), CA 78, No. 124-272v., (1973). |
Continuations (1)
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Number |
Date |
Country |
Parent |
742311 |
Nov 1976 |
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