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Sulfur diimide : ウィキペディア英語版 | Sulfur diimide
Sulfur diimides are chemical compounds of the formula S(NR)2. The parent member, S(NH)2, is of only theoretical interest. Other derivatives where R is an organic group are stable and useful reagents. ==Organic derivatives== A particularly stable derivative is di-''t''-butylsulfurdiimide.〔Kresze, G.; Wucherpfennig, W., "Organic synthesis with imides of sulfur dioxide", Angew. Chem., Int. Ed. Engl. 1967, volume 6, 149-167. 〕 A yellow oil, it is prepared by reaction of tert-butylamine with sulfur dichloride to give the intermediate "S(N-t-Bu)", which decomposes at 60 °C to give the diimide. Other routes to sulfur diimides involve treatment of sulfur tetrafluoride with amines. A third route involves transimidation of disulfonylsulfodiimide: :S(NSO2Ph)2 + 2 RNH2 → S(NR)2 + 2 PhSO2NH2
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