CS Bond cleavages of S-t-butyl thioates (1) and 4-methoxyphenylthiomethyl esters (2) are achieved electrochemically in an indirect and direct manner, respectively, in aqueous acetonitrile, affording an efficient method for deprotection of carboxylicacids under neutral conditions.
New functionalized magnesium carbenoids bearing an ester function have been prepared via an iodine-magnesium exchange reaction. These new carbenoids react with various electrophiles (60-88% yield). A substituted magnesium carbenoid has been prepared by sulfoxide-magnesium exchange.