3-amino-2-mercaptobenzoic acid derivatives and processes for their preparation

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United States of America Patent

PATENT NO 6498265
APP PUB NO 20020040157A1
SERIAL NO

09963046

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Compounds of the formula I ##STR1## and disulfides thereof and salts thereof are important intermediate products for the preparation of compounds having a microbicidal and plant-immunizing action, of the formula III ##STR2## In the compounds of the formulae I and III: X is halogen, n is 0,1,2 or 3; Z is CN, CO--A or CS--A, A is hydrogen, halogen, OR.sub.1, SR.sub.2 and N(R.sub.3)R.sub.4 ; R.sub.1 to R.sub.4 are hydrogen, a substituted or unsubstituted, open-chain, saturated or unsaturated hydrocarbon radical containing not more than 8 carbon atoms, a substituted or unsubstituted cyclic, saturated or unsaturated hydrocarbon radical containing not more than 10 carbon atoms, substituted or unsubstituted benzyl or phenethyl, a substituted or unsubstituted alkanoyl group containing not more than 8 carbon atoms, a substituted or unsubstituted benzoyl group or a substituted or unsubstituted heterocyclyl radical; or R.sub.3 and R.sub.4, together with the nitrogen atom to which they are bonded, are a 5- or 6-membered, substituted or unsubstituted heterocyclic radical having 1-3 heteroatoms O, S and/or N. Processes for the preparation of compounds of the formula I are described.

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Patent Owner(s)

Patent OwnerAddress
SYNGENTA INVESTMENT CORPORATION2200 CONCORD PIKE WILMINGTON DE 19803

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Jau, Beat Aesch, CH 12 23
Kunz, Walter Oberwil, CH 77 421

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