Unusual migration of manganese to an arene via protonation of an agostic η3:CH-cyclohexenyl complex

Todd R. Tritcak, John B. Sheridan, Marie L. Coté, Roger A. Lalancette, John P. Rose

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

Treatment of the agostic compound [Mn(η3:CH-C6H8Ph)(CO)3] 1a with HBF4·Et2O in CH2Cl2 gave the arene complex [Mn{η6-C6H5(C6H 9)}(CO)3][BF4] 2 via migration of the metal from the cyclohexenyl ring to the aryl substituent. Reaction of 2 with the nucleophiles triphenylphosphine and methylmagnesium chloride respectively gave the substitution product [Mn{η6-C6H5(C6H 9)}(CO)2(PPh3)][BF4] 3 and the addition product [Mn{η5-C6H5Me(C6H 9)}(CO)3] 4 as a mixture of isomers. The crystal structure of complex 2 has been determined: triclinic, space group P1, a = 9.399(3), b = 10.644(2), c = 8.979(1) Å, α = 93.03(1), β = 116.39(2), γ = 79.45(3)°, R = 0.057 for 1316 independent reflections.

Original languageEnglish (US)
Pages (from-to)931-935
Number of pages5
JournalJournal of the Chemical Society, Dalton Transactions
Issue number6
DOIs
StatePublished - 1995

All Science Journal Classification (ASJC) codes

  • Chemistry(all)

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