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Organometallic Derivatives of Cycloproparenes

Published in Helvetica chimica acta. 1992, vol. 75, no. 6, p. 1995-2008
Abstract The tricarbonylchromium complex of cyclopropa[b]naphthalene (3a) is deprotonated at C(1) with BuLi. Quenching of the resulting anion with Mel results in a 1:1 mixture of stereoisomeric methyl derivatives 6a and 6b. Peterson olefination of the bis‐silylated complex 3b affords the complexed alkylidenecycloproparene 5 in low yield. The tricarbonylchromium complex of cyclopropa[b]anthracene (10) is accessible via bis‐hydro‐desilylation of 9. Its X‐ray structure is also reported. All attempts to synthesize a tricarbonylchromium complex of benzocyclopropene (11a) failed.
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Other version: http://doi.wiley.com/10.1002/hlca.19920750624
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MULLER, Paul, BERNARDINELLI, Gérald Hugues, JACQUIER, Yvan Daniel Michel. Organometallic Derivatives of Cycloproparenes. In: Helvetica Chimica Acta, 1992, vol. 75, n° 6, p. 1995-2008. doi: 10.1002/hlca.19920750624 https://archive-ouverte.unige.ch/unige:118546

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