Cooligomerizations of 3-substituted 1, 5-hexadiynes with bis (trimethylsilyl) acetylene catalyzed by cobalt. A general synthesis of tricyclic ring systems from acyclic …

RL Funk, KPC Vollhardt

Index: Funk,R.L.; Vollhardt,K.P. Journal of the American Chemical Society, 1980 , vol. 102, p. 5245

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Citation Number: 56

Abstract

Abstract: A one-step synthesis of polycycles is described which utilizes a CpCo (C0) 2- catalyzed cooligomerization of substituted 1, Shexadiynes with bis (trimethylsily1) acetylene solvent to produce intermediate benzocyclobutenes which may be subsequently or concomitantly ring opened to furnish intermediate o-xylylenes. The latter dienes react intermolecularly with solvent to yield ultimately 2, 3, 6, 7-tetrakis (trimethyIsilyl) ...