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Two new sulfated oleanan saponins from Achyranthes root

Tatsuro Hoshino1, Yuji Narukawa, Yuji Haishima

  • 1Keio University, 1-5-30 Shibakoen, Minato-ku, Tokyo, 105-8512, Japan.

Journal of Natural Medicines
|July 10, 2012
PubMed

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Preparation and Reactions of Sulfides

Sulfides are the sulfur analog of ethers, just as thiols are the sulfur analog of alcohol. Like ethers, sulfides also consist of two hydrocarbon groups bonded to the central sulfur atom. Depending upon the type of groups present, sulfides can be symmetrical or asymmetrical. Symmetrical sulfides can be prepared via an SN2 reaction between 2 equivalents of an alkyl halide and one equivalent of sodium sulfide.