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Issue 16, 1997
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5-endo-Trigonal cyclization of o-substituted gem-difluorostyrenes: syntheses of 2-fluorinated indoles, benzo[b]furans and benzo[b]thiophenes

Abstract

β,β-Difluorostyrenes bearing tosylamido, hydroxy ormethylsulfinyl groups at the o-position undergo intramol-ecular substitution of the nitrogen, oxygen or sulfur withloss of fluorine via a 5-endo-trigonal process leading to2-fluorinated heterocyclic systems in high yields.

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Article type: Paper
DOI: 10.1039/A703110F
Chem. Commun., 1997, 1537-1538

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    5-endo-Trigonal cyclization of o-substituted gem-difluorostyrenes: syntheses of 2-fluorinated indoles, benzo[b]furans and benzo[b]thiophenes

    J. Ichikawa, Y. Wada, T. Okauchi and T. Minami, Chem. Commun., 1997, 1537
    DOI: 10.1039/A703110F

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