Indium triflate catalyzed microwave-assisted alkenylation of methoxyphenols: Synthesis of indenes and chromenes

V. Kameswara Rao, Pinku Kaswan, Keykavous Parang, Anil Kumar

Research output: Contribution to journalArticlepeer-review

Abstract

In(OTf)3 catalyzed microwave-assisted alkenylation of methoxyphenols was investigated. Exclusive formation of either indenes or chromenes was observed depending on the position of the methoxy group on phenol. The structures of 1H-inden-4-ol derivatives (4a-e) and 4H-chromene derivatives (5a-j) were established by NMR (1H & 13C) and high-resolution mass spectra, which were further supported by single crystal X-ray analysis of 4c and 5a.

Original languageEnglish (US)
Pages (from-to)11072-11077
Number of pages6
JournalOrganic and Biomolecular Chemistry
Volume13
Issue number45
DOIs
StatePublished - 2015
Externally publishedYes

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Biochemistry

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