Camphorselenenylsulfate is an efficient chiral, nonracemic electrophilic reagent which can be produced from the easily available camphor diselenide by treatment with ammonium persulfate. This electrophilic selenium reagent reacts with alkenes, at room temperature in acetonitrile, in the presence of water and trifluoromethanesulfonic acid to afford the amidoselenenylation products with moderate facial
Oxazolines or oxazolidin-2-ones are produced from the reaction of diphenyl diselenide, ammonium persulfate and trifluoromethanesulfonic acid with alkenes in the presence of MeCN/H2O, NH2CN/H2O or NH2CO2Et.
Formation of 2-oxazolines by a cyclization involving the displacement of mercury
作者:Richard A. Kretchmer、Patrick J. Daly
DOI:10.1021/jo00864a003
日期:1976.1
Intramolecular Nucleophilic Deselenenylation Reactions Promoted by Benzeneselenenyl Triflate. Stereospecific Synthesis of Vicinal Amino Alcohol Precursors
nitrogen nucleophilic substituents, readily undergoes intramolecular nucleophilic displacement to afford azido-substituted heterocyclic compounds. This intramolecular substitution occurs with inversion of configuration at the carbon atom bearing the selenium atom. Starting from acetamido selenides and carbamato selenides, a stereocontrolled synthesis of the vicinal amino alcohol precursor oxazolines and