Regio- and Stereoselective Synthesis of (E)- and (Z)-Allylsulfones from Aldehydes and Alkynes
Several (E)- and (Z)-1-p-toluenesulfonyl(=tosyl)-2-alkenes, allylsulfones, were regio- and stereoselectively prepared from aldehydes and alkynes, respectively, in good yields by application of the results of our previous investigation on "syn-effect" and
REGIO- AND STEREOCONTROLLED SYNTHESIS OF ALLYLIC p-TOLYL SULFONES CATALYZED BY PALLADIUM (0) COMPLEX
The reaction of allyl esters with sodium p-tolylsulfinate in tetrahydrofuran and methanol catalyzed by Pd(PPh3)4 gave the regio- and stereocontrolled allylic p-tolyl sulfones in good yields at room or lower temperature.
Inomata, Katsuhiko,Yamamoto, Taku,Kotake, Hiroshi
p. 1357 - 1360
(2007/10/02)
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