Tetrahedron letters

From 1, 4-diketones to N-vinyl derivatives of 3, 3′-bipyrroles and 4, 8-dihydropyrrolo [2, 3-f] indole in just two preparative steps

…, AM Vasil'tsov, IM Al'bina, AV Vashchenko, NV Zorina

Index: Trofimov, Boris A.; Zaitsev, Alexey B.; Schmidt, Elena Yu.; Vasil'tsov, Alexander M.; Mikhaleva, Al'bina I.; Ushakov, Igor' A.; Vashchenko, Alexander V.; Zorina, Nadezhda V. Tetrahedron Letters, 2004 , vol. 45, # 19 p. 3789 - 3791

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Citation Number: 20

Abstract

Dioximes of hexane-2, 5-dione and cyclohexane-1, 4-dione react with acetylene in an autoclave (KOH/DMSO, 100° C, 1h, initial pressure 14atm) to give 2, 2′-dimethyl-1, 1′- divinyl-[3, 3′] bipyrrole and 1, 5-divinyl-4, 8-dihydropyrrolo [2, 3-f] indole in 12% and 6% yields, respectively, thus exemplifying a very simple, straightforward route to inaccessible or unknown pyrrolic assemblies.