- Diazadithiafulvalenes as electron donor reagents
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Diazadithiafulvalenes act as excellent electron donors to arenediazonium salts. The diazadithiafulvalenium radical cations trap primary carbon radicals successfully. However, the diazadithiafulvalenium salts which form, undergo rapid ring fragmentation in contrast to their tetrathia counterparts. The Royal Society of Chemistry 1999.
- Koizumi, Toshio,Bashir, Nadeem,Kennedy, Alan R.,Murphy, John A.
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Read Online
- Solvent-free synthesis of benzothiazole-based quaternary ammonium salts: Precursors to ionic liquids
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A series of 13 benzothiazolium iodide salts have been prepared in solvent-free conditions by optimizing the reaction. An additional 26 benzothiazolium salts with bistrifluoromethanesulfonimide and trifluoromethylsulfonate were prepared via simple metathesis reactions from the iodide precursors. Out of a total of 39 prepared salts, 26 were identified as ionic liquids, with melting points as low as 42 °C observed for dodecylbenzothiazolium bistrifluoromethanesulfonimide. All prepared compounds have been characterized using FTIR, 1H, 13C NMR, and HRMS analyses. The thermal stabilities as well as melting points of these salts were also analyzed.
- Nadeem, Sohail,Munawar, Munawar A.,Ahmad, Saeed,Smiglak, Marcin,Drab, David M.,Malik, Khizar I.,Amjad, Rana,Ashraf, Chaudhry M.,Rogers, Robin D.
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experimental part
p. 19 - 37
(2010/09/06)
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- Selective Formation of Triose from Formaldehyde Catalyzed by Thiazolium Salt
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In the self-condensation of formaldehyde catalyzed by thiazolium salts, dihydroxyacetone (triose), but not glycolaldehyde, was formed selectively and in high yield.This is of much interest as a facile and novel synthesis of triose from this C1 compound.A mechanism which can account for the selective formation of dihydroxyacetone is described.
- Matsumoto, Toshihiko,Yamamoto, Hiroki,Inoue, Shohei
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p. 4829 - 4832
(2007/10/02)
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