Abstract
β-Mercaptoketones were prepared as a new type of chelating agent in which the mercapto and keto groups take part in chelate formation. β-Mercapto-β-phenylpropio-phenone was prepared by the addition of hydrogen sulfide to α-benzylideneacetophenone under pressure. This method was applied to the syntheses of β-mercapto-β-(p-methoxyphenyl)-, α-methyl-β-mercapto-β-phenyl-, and α, β-diphenyl-β-mercaptopropiophenones. In most cases, corresponding disulfides were also obtained as a result of the addition of hydrogen sulfide. These mercaptoketones formed orange-yellow chelates with copper and the ratio of ligand to copper was found to be 1 : 1.
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