Process for the preparation of .beta.-(benzothiazolylthio)- and

Details Process for the preparation of .beta.-(benzothiazolylthio)- and Process for the preparation of .beta.-(benzothiazolylthio)- and

1984-05-14

1986-09-16

Kight, John

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

548329, C07D27770

Patent

active

046123784

ABSTRACT:
The reaction of 2-mercapto-benzothiazole or -benzimidazole with .alpha.,.beta.-unsaturated carboxylic acids in a strongly acid reaction medium gives compounds of the formula I ##STR1## in which X is sulfur or NH, each radical R independently of one another is H, alkyl, halogenoalkyl, alkoxy, alkylthio, alkylsulfonyl, phenyl, alkylphenyl, phenylalkyl, cycloalkyl, halogen, NO.sub.2, CN, COOH, COOalkyl, OH or an amino or carbamyl group and R.sup.1, R.sup.2 and R.sup.3 independently of one another are H, alkyl, halogenoalkyl, hydroxyalkyl, alkoxyalkyl, carboxyalkyl, carboxyl or unsubstituted or substituted aryl or aralkyl, or R.sup.1 and R.sup.2 together are straight-chain or branched alkylene, which can be substituted by 1 or 2 carboxyl groups.

REFERENCES:
patent: 2725364 (1955-11-01), Dozzi
patent: 3499085 (1970-03-01), Sasse et al.
patent: 4289886 (1981-09-01), D'Amico
F. B. Zienty et al, J. Org. Chem. 27, 3140 (1962).

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