131179-47-0Relevant academic research and scientific papers
π-Allylic sulfonylation in water with amphiphilic resin-supported palladium-phosphine complexes
Uozumi, Yasuhiro,Suzuka, Toshimasa
experimental part, p. 1960 - 1964 (2009/04/04)
π-Allylic substitution of allyl esters with sodium arylsul-finate was performed with an amphiphilic polystyrene-poly(ethylene glycol) (PS-PEG) resin-supported phosphine-palladium complex in water as a single reaction medium under heterogeneous conditions to give allyl sulfones in good to high yields. Catalytic asymmetric allylic substitution of cycloalkenyl esters also took place in water using a PS-PEG resin-supported chiral imidazo-indolephosphine- palladium complex to give cycloalkenyl sulfones with up to 81% ee.
Phosphazene base P2-Et mediated isomerization of vinyl sulfones to allyl sulfones
Jin, Zhendong,Kim, Seong Heon,Fuchs
, p. 5247 - 5248 (2007/10/03)
Treatment of vinyl sulfones with 0.1-0.2 eq of Phosphazene base, P2-Et in THF at 25°C affords the corresponding allyl sulfones in high yield. P2-Et has shown clear superiority to both DBU and KO-t-Bu in these reactions.
