2005

Fused pyridine derivativesR 0450 Sonogashira Reaction on Quinolizium Cations. — The title reaction of 4 isomeric

bromoquinolizium bromides with substituted acetylenes affords triisopropylsilyl-, aryl- and heteroarylethynyl quinolizium cations in moderate to high yields. The method is new for heteroaromatic cations. — (GARCIA, D.; CUARDO*, A. M.; ALVAREZ-BUILLA, J.; VAQUERO, J. J.; Org. Lett. 6 (2004) 23, 4175-4178; Dep. Quim. Org., Univ. Alcala, E-28871 Alcala de Henares, Madrid, Spain; Eng.) — Steudel

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