Tetrahedron p. 5675 - 5680 (1988)
Update date:2022-08-16
Topics:
Reinecke, Manfred G.
Brown, E. Sherwood
Capehart, Bruce P.
3,4-Didehydropyridine (2) generated from two precursors (6 and 7) of diazonium carboxylate 5 reacts with cyclopentadiene to give the <4+2>-cyclo-addition product 3 rather than the <2+2>-adduct 4 proposed in the literature.The structure of 3 was supported by complete proton and carbon NMR assignments made with the aid of decouling and 2D experiments
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