Substrate scope of selective benzofuran synthesisa.
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Reaction conditions: conditions A, K2CO3 (2 equiv.), THF (0.1 M). Conditions B, p-TsOH (2 equiv.), (CF3)2CHOH (0.1 M).
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Reaction conditions: conditions A, K2CO3 (2 equiv.), THF (0.1 M). Conditions B, p-TsOH (2 equiv.), (CF3)2CHOH (0.1 M).