Ytterbium(III) trifluoromethanesulfonate efficiently catalyzes the reaction of primary
and secondary alcohols with toluenesulfonic acid anhydride to yield the alkyl tosylates
in high yields. The reactions were carried out under neutral and mild conditions and
product purification was easily achieved by means of short column chromatography.
ytterbium(III) trifluoromethanesulfonate - alcohols - catalysis - tosylation - Lewis
acids