Palladium-catalysed allylic sulphinate–sulphone rearrangements; asymmetric induction in the palladium-catalysed transfer of chiral sulphinates to sulphones
作者:Kunio Hiroi、Ryuichi Kitayama、Shuko Sato
DOI:10.1039/c39840000303
日期:——
The rearrangement of allylicsulphinates to sulphones is facilitated by palladium catalysis, treatment of the chiral trans-and cis-allyl sulphinates (S)-(–)-(1a)-(1c), and -(1e), and(S)-(–)-(1b)and -(1d)with a catalytic amount of the palladium catalysts (3)and(5)providing the corresponding chiral allyl sulphones,(S)-(+)-and(R)-(–)-(2a–c), respectively, in good yields; exceptionally the palladium catalysis