Abstract: Under thermal conditions imines react with pentacarbonyl [(methoxy)(alkyl) carbene] chromium (0) complexes at the a-carbon of the carbene complex, producing new carbene complexes. When photolyzed with visible light (sunlight) a clean cycloaddition occurs to give p-lactams in good yield. Acyclic N-alkylated imines were converted to monocyclic 0-lactams. Cyclic imines such as dihydroisoquinolines, quinolines, and ...
![2H-Azeto[2,1-a]isoquinolin-2-one, 1,4,5,9b-tetrahydro-1,7,8-trimethoxy-1-methyl- Structure](https://image.chemsrc.com/caspic/131/82919-01-5.png)