Abstract
Reaction of bis(trimethylsilyl)sulfide (HMDST) with aldehydes can be efficiently carried out in various ionic liquids, under CoCl2.6H2O or TfOTMF catalysis, leading to the formation of thioaldehydes, which are trapped as Diels-Alder cycloadducts. When 1,3-cycloheaxadiene was used, a stereoselective entry to the endo isomer was always obtained.
Funding
Financial support from MiUR, National Project PRIN 2010–2011 “Processi ossidativi e radicalici: aspetti innovativi ed applicazioni allo sviluppo di biopolimeri melanici e antiossidanti di rilevanza biomedica e tecnologica (PROxi)” is gratefully acknowledged.