Pyryliumolate. III. Synthese anellierter Benzotropolone

…, W Friedrichsen, T Debaerdemaeker

Index: Plueg, Carsten; Friedrichsen, Willy; Debaerdemaeker, Tony Advanced Synthesis and Catalysis, 1997 , vol. 339, # 3 p. 205 - 216

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Citation Number: 4

Abstract

Pyryliumolate (A) stellen insofern eine interessante Stoffklasse dar, als sie als cyclische Carbonylylide in inter-und intramolekularen Cycloadditionen [2] einen einfachen Zugang zu polycyclischen Systemen eroffnen (Bsp. A+ B). Es hat sich nun gezeigt, darj sowohl aus Diazoketonen des Typs 2 und 19c und Diazoestern des Typs 23d-f und 25b uberbruckte Systeme (4a, 5a-d, 20, 24a-c, 26) zuganglich sind [3, 51, die in gewissen Fallen als ...

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