Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1992-04-23
1993-12-28
Morris, Patricia L.
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
548475, C07D40304, C07D20934
Patent
active
052741150
ABSTRACT:
Compounds of the formula ##STR1## in which X is the radical ##STR2## where R.sub.1 and R.sub.2 are in each case a hydrogen atom, an alkyl-(C.sub.1 -C.sub.10) group, aryl group, alkyl(C.sub.1 -C.sub.6)-CO group or aryl-CO group, where the aryl or aryl-CO group in the case of R.sub.1 and R.sub.2 can be substituted on the aromatic ring by fluorine and/or chlorine atoms and/or alkyl(C.sub.1 -C.sub.4) groups, or R.sub.1 and R.sub.2 together are a phthaloyl radical which can be substituted on the aromatic ring by 4 chlorine atoms or 4 fluorine atoms, or where X is the radical ##STR3## which can be substituted on the aromatic ring by fluorine and/or chlorine atoms and/or alkyl(C.sub.1 -C.sub.4) groups, and processes for their preparation.
REFERENCES:
patent: 2657169 (1953-10-01), Ligett et al.
patent: 3734925 (1973-05-01), Minieri
patent: 4769492 (1988-09-01), Kaieda et al.
Papenfuhs Theodor
Pfirmann Ralf
Hoechst Aktiengesellschaft
Morris Patricia L.
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