Palladium-Catalyzed Decarboxylative Intramolecular Aziridination from 4H-Isoxazol-5-ones Leading to 1-Azabicyclo[3.1.0]hex-2-enes
作者:Kazuhiro Okamoto、Tomohiro Oda、Sho Kohigashi、Kouichi Ohe
DOI:10.1002/anie.201105153
日期:2011.11.25
A decarboxylative intramolecular aziridination reaction of alkene‐tethered 4H‐isoxazol‐5‐ones with a palladium/phosphine catalyst gave 1‐azabicyclo[3.1.0]hex‐2‐enes in moderate to high yields (see scheme; dba=dibenzylideneacetone). The resulting N‐fused bicyclic aziridines readily reacted with various reagents to afford ring‐opening pyrroline derivatives.
链拴的4 H-异恶唑-5-烯烃与钯/膦催化剂的脱羧分子内叠氮反应,可中等至高收率得到1-氮杂双环[3.1.0] hex-2-烯(参见方案; dba =二苄基亚丙酮) 。生成的N稠合双环氮丙啶易于与各种试剂反应,以提供开环吡咯啉衍生物。