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Azadiene Diels−Alder Cycloaddition of Fulvenes:  A Facile Approach to the [1]Pyrindine System

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journal contribution
posted on 30.09.2004, 00:00 by Bor-Cherng Hong, Jian-Lin Wu, Arun Kumar Gupta, Mahanandeesha Siddappa Hallur, Ju-Hsiou Liao
Regioselective and stereoselective inverse-electron-demand Diels−Alder reaction of N-sulfonyl-1-aza-1,3-butadiene with fulvenes are described. The methodology provides an efficient and novel route to tetrahydro-[1]pyrindine systems.