1. UMR 6507 CNRS, Laboratory of Molecular and Thio-Organic Chemistry (LCMT) ENSICAEN; University of Caen, F-14050 Caen; France
2. UMR 6014 CNRS, Research Institute in Fine Organic Chemistry (IRCOF) University and INSA of Rouen, F-76821 Mont Saint Aignan; France