Naturally occurring α-amino acid: a simple and inexpensive catalyst for the selective synthesis of 5-aryl-2-oxazolidinones from CO 2 and aziridines under solvent-free …
HF Jiang, JW Ye, CR Qi, LB Huang
文献索引:Jiang, Huan-Feng; Ye, Jin-Wu; Qi, Chao-Rong; Huang, Liang-Bin Tetrahedron Letters, 2010 , vol. 51, # 6 p. 928 - 932
Naturally occurring α-amino acid successfully catalyzed cycloaddition of aziridine with carbon dioxide to afford 5-aryl-2-oxazolisinones under mild conditions without the need of any additives. The scope of this reaction is very general, providing the corresponding products in good yields and excellent regioselectivity (87: 13–100: 0) regardless of the α- amino acid examined and a wide variety of N-substituted aziridines employed. Two ...