Process for the preparation of alkylthiomethylphenols and arylthiomethylphenols
AssigneeBayer Aktiengesellschaft
InventorsKarlfried Wedemeyer, Helmut Fiege
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Abstract
The present invention provides a process for the preparation of an alkylthiomethylphenol or arylthiomethylphenol of the general formula ##STR1## in which m, n, R and R.sup.1 have the meaning mentioned in the specification, in which a hydroxymethylphenol of the general formula ##STR2## is reacted with a mercaptan or thiophenol at a temperature of from 20.degree. to 200.degree. C., if appropriate in the presence of a diluent.
Claims29
Process for the preparation of a thio-methylphenol compound of the formula ##STR6## wherein m is 1, 2 or 3;
- each R is individually selected from hydrogen, alkyl, cycloalkyl, aryl, aralkyl, alkoxy, cycloalkoxy, aryloxy, halogen or nitro;
- or the
- R's taken together represent a benzene ring or a cycloalkane ring fused to the phenyl ring of formula (I);
- and
- R.sup.1 is alkyl of 1-12 carbon atoms, alkoxy-substituted alkyl of 1-12 carbon atoms, cycloalkyl;
- phenyl;
- halogen-substituted phenyl;
- or aralkyl,
- which process comprises, in the absence of a catalyst,
- reacting an hydroxymethylphenol of the formula ##STR7## wherein R and m are defined as above with a mercaptan or thiophenol of the formula
- R.sup.1 --S--H
- where
- R.sup.1 is defined as above, at a temperature from 50.degree. C. to 200.degree. C.
Process for the preparation of a thiomethylphenol compound of the formula ##STR8## wherein m is 1, 2 or 3;
- each R is individually selected from hydrogen, cycloalkyl, aryl, aralkyl, alkoxy, cycloalkoxy, aryloxy, halogen or nitro;
- or the
- R's taken together represent a benzene ring or a cycloalkane ring fused to the phenyl ring of formula (I);
- and
- R.sup.1 is halogen substituted phenyl;
- which process comprises
- in the absence of a catalyst, reacting an hydromethylphenol of the formula ##STR9## wherein R and m are defined as above with a mercaptan or thiophenol of the formula
- R.sup.1 --S--H (III)
- wherein
- R.sup.1 is defined as above, at a temperature from 20.degree. to 200.degree. C.
Dependencies are inferred from the claim text.