Search results for: SELENENYLATION

• Efficient Selenenylation of Malonates Using Bis(phosphorothioyl) Diselenide

  Publication

  • A. Majewski
  • W. Przychodzeń
  • J. Rachoń

  - PHOSPHORUS SULFUR AND SILICON AND THE RELATED ELEMENTS - Year 2011

  Bis(O,O-diisopropoxyphosphinothioyl) diselenide reacts readily and quickly with the sodium salt of malonates to give quantitatively stable sodium 2-(O,O-diisopropyl phosphorothioselenenyl)propanedioates. No traces of the corresponding C,C-diselenenylation products were detected. A standard aqueous workup procedure affords the products, albeit in poor yield (about 45%). It was proved that the reaction is reversible due to the presence...

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• Atom-economic thiophosphoroselenenylations of C–H acid esters and amides

  Publication

  • A. Majewski
  • W. Przychodzeń

  - SYNTHETIC COMMUNICATIONS - Year 2021

  Three improved thiophosphoroselenenylation procedures of CHacids, including derivatives of malonic and acetyl-, phosphono-, 4-nitrophenyl- and 3-pyridylacetic acids, have been described and compared to previously reported thiophosphoroselenylation of diethyl malonate using bis(disopropoxyphosphinothioyl)diselenide alone or with the aid of methyl iodide. The use of iodine makes it possible to utilize both equivalents of the selenenylating...

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