A series of 3d–4f binuclear complexes, [M­(3-MeOsaltn)­(MeOH)x(ac)­Ln­(hfac)2] (x = 0 for M = CuII, ZnII; x = 1 for M = CoII, NiII; Ln = GdIII, TbIII, DyIII, LaIII), have been...

The 1,3-asymmetric iodolactonization reaction of enantiopure α-sulfurated γ-unsaturated amides has been investigated. With sulfinyl and sulfonyl groups, a poorly stereoselective...

The semisynthesis and biological activity of paclitaxel (Taxol) analogues in which the oxygen atom in ring D is substituted by a sulfur or a selenium atom is presented. These...

A number of carbocyclic analogues of the fructose-derived ketone 1 have been prepared and investigated for asymmetric epoxidation. The studies show that the oxygen atom of the...

The incorporation of [15N, 18O]-isobutylhydroxylamine into the antibiotic valanimycin by Streptomyces viridifaciens has been shown to proceed with loss of the 18O label, thereby...

The synthesis of novel acetal thia-cage compounds has been accomplished by the direct substitution for the oxygen atom by the sulfur atom in the reaction of the acetal groups of...

3-Aryl-3-hydroxy-1-methylazetidine-2-thiones react with HCl in DMSO to give 3-methyl-5-aryloxazole-2-thiones. Substituent effects correlate with rate effects on hydrolyses of...