Da. Evans et al., MILD ALCOHOL METHYLATION PROCEDURES FOR THE SYNTHESIS OF POLYOXYGENATED NATURAL-PRODUCTS - APPLICATIONS TO THE SYNTHESIS OF LONOMYCIN-A, Tetrahedron letters, 35(39), 1994, pp. 7171-7172
Studies directed toward the formation of methyl ethers in key intermed
iates for the synthesis of lono-mycin A are described. Several highly
functionalized secondary alcohols have been methylated in excellent yi
elds using the powerful methylating reagents methyl triflate (MeOTf) a
nd trimethyloxonium fluoroborate (Me(3)OBF(4)).