E. Arce et al., A HORNER-WADSWORTH-EMMONS APPROACH TO [(S)R]-4-SUBSTITUTED 1-P-TOLYLSULFINYL-1,3-DIENES, Tetrahedron : asymmetry, 6(7), 1995, pp. 1757-1764
[(S)R,1E,3E]-4-p-Tolylsulfinyl-1-X-1,3-butadienes 1 (X = CO(2)Me, CN,
PO(OEt)(2), SO2 Ph, SEt) are synthesized from a common starting materi
al, [(S)R]-3-p-tolylsulfinyl-2-propenal 2, through a Horner-Wadsworth-
Emmons reaction with the phosphonate (XCH(2)PO(OEt)(2)). The synthesis
of 2 is also described.