Synthesis p. 1018 - 1020 (1994)
Update date:2022-08-30
Topics:
Teranishi
Nakatsuka
Goto
A facile synthesis of 6-hydroxyindole and 6-methoxyindole starting from indole is described. Regioselective chloroacetylation of 1-pivaloylindole followed by Baeyer-Villiger oxidation offers introduction of an oxygen function into the 6-position of the indole ring. Deacylation of 6-chloroacetyl-1-pivaloylindole gives 6-hydroxyindole which is converted to 6-methoxyindole by methylation. The overall yield of 6-hydroxyindole and 6-methoxyindole from indole is 54 and 37%, respectively.
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