A novel fragmentation of the .beta.-lactam ring: stereoselective entry to vinyl ethers by reaction of N-(arylidene(or alkylidene)amino)-2-azetidinones with ozone
摘要:
The title compounds undergo a novel 2-azetidinone ring fragmentation by reaction with ozone followed by NaBH4 workup to stereoselectively yield vinyl ethers via intermediate N-nitroso-beta-lactams.