Claims
- 1. A compound of formula II ##STR42## wherein R.sub.1 is hydrogen or fluorine;
- or R.sub.1 together with R.sub.3 is a C.sub.2 -C.sub.4 alkylene chain;
- R.sub.3 is hydrogen, fluorine or C.sub.1 -C.sub.3 alkyl;
- R.sub.2 is hydrogen, fluorine or C.sub.1 -C.sub.3 alkyl;
- R.sub.4 is hydrogen, fluorine, chlorine or C.sub.1 -C.sub.3 alkyl;
- R.sub.5 is hydrogen, fluorine, chlorine, C.sub.1 -C.sub.3 alkyl, or C.sub.1 -C.sub.3 alkyl substituted by fluorine or chlorine; and
- R.sub.a is hydrogen or halogen, or a C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy or C.sub.1 -C.sub.4 alkylthio radical each of which may be unsubstituted or mono-or poly-substituted by halogen;
- with the proviso that at least one of the radicals R.sub.1 to R.sub.5 is fluorine, or one of the radicals R.sub.4 and R.sub.5 is chlorine.
- 2. A compound according to claim 1, wherein R.sub.1 and R.sub.3, each independently of the other, are hydrogen or fluorine; R.sub.4 is hydrogen, fluorine or chlorine; and R.sub.5 is hydrogen or fluorine, or C.sub.1 -C.sub.3 alkyl that is unsubstituted or substituted by fluorine or chlorine.
- 3. A compound according to claim 1, wherein R.sub.a is hydrogen.
- 4. A compound according to claim 1, wherein the radical of the formula Ia ##STR43## contains a maximum of 3 carbon atoms.
- 5. A compound according to claim 1, wherein in the radical of the formula Ia ##STR44## at least one of the radicals R.sub.3, R.sub.4 and R.sub.5 contains a halogen atom indicated for that radical.
- 6. A compound according to claim 5, wherein only one of the radicals R.sub.3, R.sub.4 and R.sub.5 is halogen.
- 7. A compound according to claim 1, wherein R.sub.1 is hydrogen or fluorine; R.sub.2 is hydrogen, fluorine, methyl or ethyl; R.sub.3 is hydrogen, fluorine or methyl, or R.sub.1 together with R.sub.3 forms a C.sub.4 alkylene chain; R.sub.4 is hydrogen, fluorine, chlorine, methyl or ethyl; R.sub.5 is hydrogen, fluorine, chlorine, trifluoromethyl or dichloromethyl; and R.sub.a is hydrogen.
- 8. A compound according to claim 1, wherein said compound has the formula ##STR45##
- 9. A compound according to claim 1, wherein said compound has the formula ##STR46##
- 10. A compound according to claim 1, wherein said compound has the formula ##STR47##
- 11. A compound according to claim 1, wherein said compound has the formula ##STR48##
Priority Claims (1)
Number |
Date |
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Kind |
895/91 |
Mar 1991 |
CHX |
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Parent Case Info
This is a division of Ser. No. 08/369,063, filed Jan. 5, 1995, abandoned, which is a division of Ser. No. 08/224,393, filed Apr. 7, 1994, now U.S. Pat. No. 5,403,814, which is a continuation of Ser. No. 08/094,824, filed Jul. 20, 1993, abandoned, which is a continuation-in-part of Ser. No. 07/938,036, 35 USC 37 1 date Nov. 12, 1992, abandoned, which is a national stage of PCT/EP92/00555, filed Mar. 13, 1992.
US Referenced Citations (11)
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Divisions (2)
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Date |
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Parent |
369063 |
Jan 1995 |
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Parent |
224393 |
Apr 1994 |
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Continuations (1)
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Date |
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Parent |
94824 |
Jul 1993 |
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Continuation in Parts (1)
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Number |
Date |
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Parent |
938036 |
Nov 1992 |
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