| Abstract
| - As an entry to furoquinoline structures of natural origin, the rhodium-mediated dipolar cycloadditionof diazoquinolinediones with alkenes and alkynes has been examined. Because of the unsymmetricalnature of the diazo compounds, both linear and angular furoquinoline products are possible. Forthe most part, a mixture of regioisomers is generated in moderate to good yields, though in a fewcases dominant products are obtained in high yields. The products can be further converted tonaturally occurring alkaloids such as isodictamnine. A novel observation in this work is that catalyticquantities of acid enhance the yield and regiochemical control in the cycloaddition.
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