Enantioselective Reaction of 2<i>H</i>-Azirines with Oxazol-5-(4<i>H</i>)-ones Catalyzed by Cinchona Alkaloid Sulfonamide Catalysts
作者:Kazuki Fujita、Masataka Miura、Yasuhiro Funahashi、Tsubasa Hatanaka、Shuichi Nakamura
DOI:10.1021/acs.orglett.1c00259
日期:2021.3.19
The enantioselective reaction of 2H-azirines with oxazol-5-(4H)-ones (oxazolones) using a cinchona alkaloid sulfonamide catalyst has been developed. The reaction proceeded at the C-2 position of oxazolones to afford products with consecutive tetrasubstituted stereogenic centers in high yield with high diastereo- and enantioselectivity. The obtained aziridines were converted into various chiral compounds
已经开发了使用金鸡纳生物碱磺酰胺催化剂的2 H-叠氮基与恶唑5-(4 H)-1(恶唑酮)的对映选择性反应。反应在恶唑酮的C-2位进行,以高收率和高非对映选择性和对映选择性提供具有连续四取代立体异构中心的产物。将获得的氮丙啶类化合物转化为各种手性化合物,而不会损失对映体纯度。