Abstract
AbstractIn synthetic studies leading to the title compounds, application of the Claisen rearrangement of 5‐allyloxyindole was investigated. Almost quantitative yields of Claisen rearrangement product were realized, and a strategy for oxidative cleavage of the allyl double bond to an indole‐4‐acetaldehyde derivative was developed. A new method for conversion of 2,3‐dihydroindoles into indoles was utilized: air oxidation in a strongly basic environment. The Claisen rearrangement of allyloxyindoles is presented as a method having considerable potential utility in synthesis of a variety of polysubstituted indoles.
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