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
天然存在的
α-氨基酸在不需要任何添加剂的条件下,在温和条件下成功地催化了
氮丙啶与
二氧化碳的环加成反应,从而获得了5-芳基-2-
恶唑啉酮。该反应的范围非常广泛,无论所检测的
α-氨基酸和所用的N-取代
氮丙啶种类繁多,都能以较高的收率和优异的区域选择性(87:13–100:0)提供相应的产物。还讨论了反应的两种可能的反应途径。