title: Gold(iii)-catalyzed synthesis of aroylbenzo[b]oxepin-3-ones from ortho-O-propargyl-1-one substituted arylaldehydes.
abstract: An efficient gold-catalyzed intramolecular cyclization of ortho-O-propargyl-1-one substituted arylaldehydes has been achieved for the generation of substituted aroylbenzo[b]oxepin-3-one derivatives in moderate to good yields. This synthetic transformation proceeds via gold-catalysed oxidation of the internal alkyne moiety followed by an intramolecular condensation leading to seven-membered oxacycles.
authors.affiliation: Crop Protection Chemicals Division, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, India. gallavk@iict.res.in.
authors.forename: N S V M Rao
authors.initials: NS
authors.lastname: Mangina
authors.forename: Surisetti
authors.initials: S
authors.lastname: Suresh
authors.forename: Balasubramanian
authors.initials: B
authors.lastname: Sridhar
authors.forename: Galla V
authors.initials: GV
authors.lastname: Karunakar