Cycloadditions in Syntheses. Part 28. 2-Azabicyclohexane-3,5-dione and its Derivatives: Synthesis and Transformation to Azetidin-2-ones
2-Azabicyclohexane-3,5-dione has been synthesized via photopyridone formation from 4-(dimethyl-t-butylsiloxy)- or 4-alkoxy-2-pyridones followed by mild acid hydrolysis.The title compound and its derivatives react with a variety of nucleophiles (ROH