Zl. Hickman et al., A concise synthesis of 3-hydroxyindole-2-carboxylates by a modified Baeyer-Villiger oxidation, TETRAHEDR L, 41(43), 2000, pp. 8217-8220
Indole-2-carboxylates are converted in good yields to 3-hydroxyindole-2-car
boxylates by use of a Vilsmeier-Haack/Baeyer-viIliger reaction sequence. A
systematic examination of the various indole substituents revealed this rou
te to be general in scope. (C) 2000 Published by Elsevier Science Ltd.