Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1994-01-12
1996-05-28
Rizzo, Nicholas
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
540227, C07D50102
Patent
active
055213081
ABSTRACT:
Process for the preparation of crystalline TACA ##STR1## in the presence of a base and subsequent precipitation by addition of a TACA solution to a partial amount of an acid, which can also contain a precipitation auxiliary, and subsequent completion of the precipitation by further addition of acid or by further addition of TACA solution and acid.
REFERENCES:
patent: 4376200 (1983-03-01), Ozasa et al.
patent: 5126445 (1992-06-01), Martin
Trodel Reinhard
Wieduwilt Manfred
Hoechst Aktiengesellschaft
Rizzo Nicholas
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