2-Phenyl-N-tosylazetidine as a formal 1,4 dipole precursorThis paper is dedicated to Professor Camille-Georges Wermuth.Electronic supplementary information (ESI) available: experimental details and characterization for key intermediates, including the ORTEP figures of the X-ray structures for compounds 4a and 10. See http:// www.rsc.org/suppdata/cc/b1/b101168p/
Abstract
N-Tosyl-2-phenylazetidine 1 in the presence of BF3·Et2O reacts as a formal 1,4 dipole with various activated or non activated alkenes.