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Facile and Versatile Annulation of the Imidazole Ring: Single and Sequential Cyclization Reactions of Fischer Carbene Complexes with 1,4-Diazafulvenes.

✍ Scribed by Jose Barluenga; Jaime Garcia-Rodriguez; Silvia Martinez; Angel L. Suarez-Sobrino; Miguel Tomas

Publisher
John Wiley and Sons
Year
2006
Weight
51 KB
Volume
37
Category
Article
ISSN
0931-7597

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## Abstract We examined the reactivity of dimethylaminodiazafulvene **1** toward Fischer alkenylcarbene **2** and alkynylcarbene **3** complexes. Diazafulvene **1** reacts with alkenylcarbenes **2** through a formal [6+3] heterocyclization in a regio‐ and stereoselective manner to afford dihydroimi

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