On the Mechanism of the Selenolactonization Reaction with Selenenyl Halides
作者:Scott E. Denmark、Michael G. Edwards
DOI:10.1021/jo0610457
日期:2006.9.1
The mechanism of selenocyclization reactions of β,γ-unsaturated acids and their derivatives has been studied. The reactions of (E)-4-phenyl-3-butenoic acid 10 and its silyl and alkyl esters with benzeneselenenyl chloride (PhSeCl) and bromide (PhSeBr) have been examined by VT-NMR and in situ IR spectroscopic methods. Whereas the reactions of the acid 10 in the presence of a base were irreproducible