This work describes an extended version of the Corey–Chaykovsky reaction to access oxazolines using sulfur ylides and stable precursors of acyl imines. The reaction proceeds through a mixture of aziridines and oxazolines, which provides the trans-oxazolines following in situ Heine-type aziridine ring expansion upon treatment with BF3·OEt2. Following the same one-pot procedure, amidine imides react
这项工作描述了Corey-Chaykovsky反应的扩展版本,该反应使用
硫代叶立德和稳定的酰基
亚胺前体来获得
恶唑啉。反应通过
氮丙啶和
恶唑啉的混合物进行,该混合物在用BF 3 ·OEt 2处理后原位Heine型
氮丙啶环膨胀后提供反式
恶唑啉。按照相同的一锅法,am
酰亚胺与
硫酰化物反应生成
咪唑啉。