1. Department of Chemistry, Chemistry Research Laboratory, University of Oxford, Oxford, OX1 3TA UK
These authors contributed equally.;2. Department of Chemistry, Chemistry Research Laboratory, University of Oxford, Oxford, OX1 3TA UK
Abstract:
A photochemical approach to polysubstituted heterocycles using UV-induced alkene isomerization is described. The method allows for the synthesis of disubstituted furans and pyrroles under mild and neutral conditions and also provides access to a class of trisubstituted furans pertinent to natural-product synthesis. The method has broad functional-group tolerance and many richly decorated heterocycles have been prepared incorporating functional groups that are unstable under Brønsted and Lewis acidic conditions.