Regioselective Claisen rearrangements in indoles

Abstract
Heating the 6-allyloxyindoles (3), readily prepared from the benzaldehydes (1), gives the corresponding 7-allylindoles (4) by regioselective Claisen rearrangement; the 7-linalylindole (10) is prepared from 4-geranyloxybenzaldehyde by a similar sequence.

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