摘要 |
The present invention relates to a novel process for the preparation of compounds of the formula (I) by reacting in a first step amino alcohols of the formula (II) with oleum to give sulphuric acid esters of the general formula (III) and by reacting these sulphuric acid esters in a second step with mercaptans or salts thereof of the general formula (IV) <?in-line-formulae description="In-line Formulae" end="lead"?>RSM (IV) <?in-line-formulae description="In-line Formulae" end="tail"?> wherein in each formula, where applicable, R<SUP>1</SUP>, R<SUP>2</SUP>, R<SUP>3</SUP>, R<SUP>4</SUP>, R<SUP>5</SUP>, R<SUP>6</SUP>R, n and M have the meanings given in the disclosure, in the presence of a diluent and in the presence of a base.
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