Purification of isothiazolones

Details Purification of isothiazolones Purification of isothiazolones

1988-12-22

1991-04-16

Rizzo, Nicholas S.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D51300

Patent

active

050083953

ABSTRACT:
A process for obtaining pure 2-substituted-3(2H)-isothiazolones is presented, wherein the substituent is alkyl, linear or branched. By developing suitable conditions, the isothiazolone hydrochloride is isolated from the complex reaction media wherein it is formed as readily filterable crystals of high purity. Such purified crystals are then utilized in isolation of isothiazolone of high purity.

REFERENCES:
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patent: 3761488 (1978-09-01), Lewis et al.
patent: 4053479 (1977-10-01), Miller et al.
patent: 4262127 (1981-04-01), Virgilio et al.
Cheronis N. D. "Semimicro Experimental . . . " Brooklyn College, 1958.

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