Process for the preparation of crystalline TACA

Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...

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540227, C07D50102

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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

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