Photochemical Aryl Radical Cyclizations to Give (E)-3-Ylideneoxindoles
Michael Gurry,
Ingrid Allart-Simon,
Patrick McArdle,
Stéphane Gérard,
Janos Sapi,
Fawaz Aldabbagh
Affiliations
Michael Gurry
School of Chemistry, National University of Ireland Galway, University Road, Galway, Ireland
Ingrid Allart-Simon
Institut de Chimie Moléculaire de Reims, UMR CNRS 7312, Université de Reims-Champagne-Ardenne, Faculté de Pharmacie, 51 rue Cognacq-Jay, F-51096 Reims Cedex, France
Patrick McArdle
School of Chemistry, National University of Ireland Galway, University Road, Galway, Ireland
Stéphane Gérard
Institut de Chimie Moléculaire de Reims, UMR CNRS 7312, Université de Reims-Champagne-Ardenne, Faculté de Pharmacie, 51 rue Cognacq-Jay, F-51096 Reims Cedex, France
Janos Sapi
Institut de Chimie Moléculaire de Reims, UMR CNRS 7312, Université de Reims-Champagne-Ardenne, Faculté de Pharmacie, 51 rue Cognacq-Jay, F-51096 Reims Cedex, France
Fawaz Aldabbagh
School of Chemistry, National University of Ireland Galway, University Road, Galway, Ireland
(E)-3-Ylideneoxindoles are prepared in methanol in reasonable to good yields, as adducts of photochemical 5-exo-trig of aryl radicals, in contrast to previously reported analogous radical cyclizations initiated by tris(trimethylsilyl)silane and azo-initiators that gave reduced oxindole adducts.
