- A New Procedure for the Conversion of Thiols into Reactive Sulfenylating Agents
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Thiols may be converted in high yield into unsymmetrical 2-pyridyl disulfides 3.Treatment of these with alkylating agents (e.g., alkyl fluorosulfonates or oxonium salts) affords the corresponding N-alkylpyridyl disulfides 4, which are potent sulfenylating agents (Scheme II) and react smoothly with a variety of sulfur nucleophiles (e.g., thiols, thiones, thioamides, dithiocarbamates, thiocyanate, etc.) to afford disulfides, with amines to afford sulfenamides, and with β-diketones to afford sulfides.This new method is particularly well-suited to the preparation of unsymmetrical disulfides and sulfenamides from complex and otherwise r eactive thiols.
- Barton, D. H. R.,Hesse, R. H.,O'Sullivan, A. C.,Pechet, M. M.
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p. 6697 - 6702
(2007/10/02)
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- A Convenient Preparation of Bis(phosphorothioyl) Sulfides
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The reaction of piperidinium and potassium phosphorodithioates with 2-chloro-1-methyl-pyridinium salts afforded the corresponding bis(phosphorothioyl) sulfides in good yields.The similar reaction with potassium diphenylphosphorothioate gave exclusively bis(diphenylphosphorothioyl) oxide. - Keywords: Bis(phosphorothioyl) Sulfides, Piperidinium Phosphorodithioates, Bis(phosphorothioyl) Oxides
- Min, Shi,Ishihara, Hideharu,Murai, Toshiaki,Kato, Shinzi
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p. 153 - 157
(2007/10/02)
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- A CONVENIENT METHOD FOR THE PREPARATION OF N,N'-DISUBSTITUTED THIOUREAS USING 2-CHLOROPYRIDINIUM SALT, SODIUM TRITHIOCARBONATE AND AMINES
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N,N'-Disubstituted thioureas were prepared in high yields by treating 2-chloropyridinium salt with sodium trithiocarbonate and subsequently adding amines.
- Takikawa, Yuji,Inoue, Noriyuki,Sato, Ryu,Takizawa, Saburo
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p. 641 - 642
(2007/10/02)
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