Transition metal and base free synthesis of 2-aryl-2-oxazolines from aldehydes and β-amino alcohols catalysed by potassium iodide
作者:C. Uma Maheswari、G. Sathish Kumar、M. Venkateshwar
DOI:10.1039/c4ra08578g
日期:——
Synthesis of 2-aryl-2-oxazolines from β-amino alcohols and aldehydes was achieved in good to excellent yield by employing a potassium iodide (KI)–tert-butyl hydroperoxide (TBHP) catalytic system.
The Isomerization and Dimerization of Aziridine Derivatives. IV
作者:Harold W. Heine、William G. Kenyon、Eleanor M. Johnson
DOI:10.1021/ja01472a033
日期:1961.6
Phosphine-Catalyzed Heine Reaction
作者:Allen Martin、Kathleen Casto、William Morris、Jeremy B. Morgan
DOI:10.1021/ol202410v
日期:2011.10.21
Aziridines are important synthetic Intermediates which readily undergo ring-opening reactions. It is demonstrated that electron-rich phosphines are efficient catalysts for the regioselective rearrangement of N-acylaziridines to oxazolines. The reactions occur in excellent yield under neutral conditions. Evidence is provided for an addition/elimination mechanism by generation of a phosphonium intermediate. Similar intermediates may be useful for the development of alternate aziridine ring-opening processes and stereoselective synthesis with enantiopure phosphines.