Sulfur compounds useful for preparation of dyes
AssigneeBASF SE
InventorsManfred Patsch, Ernst Schefczik
Life of this patent
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Abstract
Sulfur compounds of the formula ##STR1## where n is 0 or 2, R.sup.1 and R.sup.2 are hydrogen, C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.6 -alkoxy, halogen, nitro, amino, hydroxysulfonyl, C.sub.1 -C.sub.6 -alkoxycarbonyl or unsubstituted or substituted carbamoyl, A is methylene, carbonyl, sulfonyl or a radical of the formula CH.sub.2 --CO or CH.sub.2 --SO.sub.2, is a direct bond or unsubstituted or substituted C.sub.1 -C.sub.8 -alkylene and Y is vinyl or a radical of the formula C.sub.2 H.sub.4 Q, where Q is hydroxyl or a group which can be removed under alkaline reaction conditions, and a process for their preparation are described.
Claims4
A sulfur compound of the formula I ##STR15## where n is 0 or 2,
- R.sup.1 and R.sup.2 independently of one another in each case are hydrogen, C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.6 -alkoxy, halogen, nitro, amino, hydroxysulfonyl, C.sub.1 -C.sub.6 -alkoxycarbonyl, carbamoyl or C.sub.1 -C.sub.6 -mono- or dialkylcarbamoyl,
- A is methylene, carbonyl, sulfonyl or a radical of the formula CH.sub.2 --CO or CH.sub.2 --SO.sub.2, the methylene group in each case being linked to the benzene ring,
- X is a direct bond, C.sub.1 -C.sub.8 -alkylene which may be interrupted by 1 to 3 oxygen atoms in ether linkage, 1 to 3 imino groups or 1 to 3 C.sub.1 -C.sub.4 -alkylimino groups, or a radical of the formula L.sup.1 --CO--NR.sup.3 --L.sup.2, where L.sup.1 and L.sup.2 independently of one another in each case are C.sub.1 -C.sub.4 -alkylene and R.sup.3 is hydrogen, C.sub.1 -C.sub.4 -alkyl or phenyl, and
- Y is vinyl or a radical of the formula C.sub.2 H.sub.4 Q, where Q is hydroxyl or a group which can be removed under alkaline reaction conditions.
Dependencies are inferred from the claim text.