1200396-24-2Relevant academic research and scientific papers
Gold- or platinum-catalyzed synthesis of sulfur heterocycles: access to sulfur ylides without using sacrificial functionality
Davies, Paul W.,Albrecht, Sebastien J.-C.
supporting information; experimental part, p. 8372 - 8375 (2010/02/27)
It's no sacrifice: Alkynes have been used as direct precursors to sulfur ylides under gold or platinum π-acid catalysis in an atom-economic manner. An intramolecular redox reaction between an alkyne group with a tethered sulfoxide unit gen-erates a sulfur ylide, which undergoes 2,3sigmatropic rearrangement. Acyclic substrates are cycloisomerized to afford functionalized dihydrothiophenones (see scheme) and dihydrothiopyranones.
