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Publication 97  


  1. P. Müller, G. Bernardinelli, Y. Jacquier, A. Ricca,
    “Tricarbonyl-chromium complexes of benzannelated cycloproparenes”
    Helv. Chim. Acta 1989, 72, 1618-1626.

Reaction of 1H-cyclopropa [b]naphthalene (1a) or 1H-cyclopropa[b]anthracene (10a) with tris(acetonitrile)tricarbonylchromium affords cyclobutanaphthalenone and cyclobutaanthracenone 2 and 11, respectively. In contrast, the bis-silylated Cycloproparenes 1b and 10b undergo complexation at the terminal benzene ring and lead to the arene-tricarbonylchromium complexes 4b and 12, respectively. Desifylation of 4b to 4a is effected by t-BuOK.

DOI : 10.1002/hlca.19890720722 

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