Introduction of a Hydroxy Group onto 5- and 6-Position of Indole Nucleus by Friedel-Crafts Acylation and Subsequent Baeyer-Villiger Oxideation

Abstract
A hydroxy group was efficiently introduced onto 5-and 6-position of methyl 1-methylindole-3-carboxylate 1 and methyl indole-3-carboxylate 11.
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