Unusual Migration of Manganese to an Arene via Protonation of an Agostic η3:CH-Cyclohexenyl Complex

DOI: 10.1039/DT9950000931

Source and publish data:

Journal of the Chemical Society, Dalton Transactions p. 931 - 936 (1995)

Update date:2022-09-26

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Authors:

Tritcak, Todd R.

Sheridan, John B.

Cote, Marie L.

Lalancette, Roger A.

Rose, John P.

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Article abstract of DOI:10.1039/DT9950000931

Treatment of the agostic compound 3:CH-C6H8Ph)(CO)3> 1a with HBF4*Et2O in CH2Cl2 gave the arene complex 6-C6H5(C6H9)>(CO)3> 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 6-C6H5(C6H9)>(CO)2(PPh3)> 3 and the addition product 5-C6H5Me(C6H9)>(CO)3> 4 as a mixture of isomers.The crystal structure of complex 2 has been determined: triclinic, space group P<*>, a = 9.399(3), b = 10.644(2), c = 8.979(1) Angstroem, α = 93.03(1), β = 116.39(2), γ = 79.45(3) deg, R = 0.057 for 1316 independent reflections.

Full text of DOI:10.1039/DT9950000931

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