An efficient synthesis of (pyrrolidin-2-ylidene)glycinate using intramolecular 1, 3-dipolar cycloaddition of azide and olefin
作者:Yaeko Konda、Takahiro Sato、Kaori Tsushima、Masataka Dodo、Ami Kusunoki、Masataka Sakayanagi、Noriko Sato、Kazuyoshi Takeda、Yoshihiro Harigaya
DOI:10.1016/s0040-4020(99)00753-x
日期:1999.10
tert-butyl (E-)-(pyrrolidin-2-ylidene)glycinates 3a and 3b were efficiently and stereoselectively synthesized from 2, 3, 5-tri-O-benzylarabinose using Horner-Emmons olefination of arabinal 9 and phosphorylglycine ester and intramolecular 1, 3-dipolar cycloaddition reaction of azide and olefin as the key reactions.
甲基和叔丁基(ë - ) - (吡咯烷-2-亚基)甘氨酸图3a和图3b分别为有效和立体选择性地从2中合成,3,5-三ö -benzylarabinose使用arabinal的霍纳-埃蒙斯烯9和磷酰基甘氨酸酯和叠氮化物与烯烃的分子内1、3-偶极环加成反应为关键反应。