C. Cardellicchio et al., DEPENDENCE OF THE ENANTIOSELECTIVITY ON THE NATURE OF THE BASE IN A HORNER-WADSWORTH-EMMONS REACTION LEADING TO VINYL SULFOXIDES, Tetrahedron letters, 36(36), 1995, pp. 6563-6566
The enantioselectivity of the HWE synthesis of chiral methyl (Z)- and
(E)-3-p-tolylsulfinylpropenoate was found to depend upon the nature of
the base, the e.e. values being in the range 5-->98%.