Scandium-catalyzed carbon-carbon bond-forming reactions of 3-sulfanyl-and 3-selanylpropargyl alcohols
(Chemical Equation Presented) The scandium-catalyzed substitution reactions of the phenylsulfanyl and phenylselanyl propargyl alcohols 3a-i and 7a-h regioselectively proceeded to give the propargylated compounds 4 and 8 in high yields.