Synthesis and characterization of some Antimony(lll) derivatives of phthalanilic and maleanilic acids

Abstract

Some antimony(lll) derivatives of phthalanilic and maleanilic acids of the type [L]₃Sb and [L]SbSCH₂CH₂S (where L= phthalanilate and maleanilate anions] have been synthesised by the reactions of antimony trichloride and 2-chloro-1, 3-dithia-2- stibacyclopentane, each, with phthalanilic and maleanilic acids in 1:3 and 1:1 molar ratios respectively in refluxing acetonitrile. Alternatively, these derivatives have also been synthesised by refluxing antimony trichloride and 2-chloro-1, 3-dithia-2-stibacyclopentane, each, with sodium phthalanilate and sodium maleanilate (prepared <i>in situ </i> by the reaction of sodium methoxide with phthalanilic and maleanilic acid in methanol) in 1:3 and 1:1 molar ratios respectively in ·methanol. These derivatives are characterised by elemental analysis, as well as IR and ¹H NMR spectral studies.