In(OTf)3-Catalyzed Synthesis of 2,3-Dihydro-1H-benzo[e]indoles and 2,3-Dihydrobenzofurans via [3 + 2] Annulation.
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DOI: 10.1021/acs.orglett.0c02729
Abstract: An In(OTf)3-catalyzed intermolecular [3 + 2] annulation for the synthesis of 2,3-dihydro-1H-benzo[e]indoles and 2,3-dihydrobenzofurans from readily available substrates has been achieved. This approach takes advantage of oxetane and para-quinone methide as important functional units in… read more here.
Keywords: indoles dihydrobenzofurans; otf catalyzed; annulation; benzo indoles ... See more keywords