Mild conditions (1.2 eq. Hg(OAc)(2), 1.2 eq. TBAF in 1:1 MeOH/THF; 35 min a
t 0 degrees C) have been developed for the protodesilylation of alpha-dimet
hylphenylsilyl esters. An enolate-dependent mechanism for the reaction was
supported through studies indicating the clean incorporation of deuterium.
To further investigate the mechanism, the optimal conditions as well as the
kinetics of the reaction were explored, (C) 1999 Elsevier Science Ltd. All
rights reserved.