1998 mercaptans, thioethers

mercaptans, thioethers (benzene compounds)Q 0580

52 - 113Selective Synthesis of Organic Sulfides and Disulfides by the Reduc-tion of Elemental Sulfur with Samarium Diiodide. — Reductionof elemental sulfur by SmI2 in the presence of HMPA gives samarium sulfidewhich reacts with alkyl halides to furnish selectively dialkyl sulfides [cf. (II),(V)]. Contrary, reduction of sulfur with appropriate amounts of SmI2 in theabsence of HMPA yields samarium disulfide which provides an efficient andselective access to dialkyl disulfides [cf. (III)]. — (OGAWA, A.; TAKAMI, N.;SEKIGUCHI, M.; SONODA, N.; HIRAO, T.; Heteroat. Chem. 9 (1998) 6,581-584; Dep. Appl. Chem., Fac. Eng., Osaka Univ., Suita, Osaka 565, Japan;EN)

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