Journal of Organometallic Chemistry p. 233 - 244 (1981)
Update date:2022-09-26
Topics:
Loim, N. M.
Kondrat'Ev, P. V.
Solov'Eva, N. P.
Antonovich, V. A.
Petrovskii, P. V.
et al.
Dimethylaminomethyl- and hydroxymethyl-cymantrenes, when treated with n-butyllithium, are selectively metallated in the 2(5) position of the Cp ringand are converted into 1,2-disubstituted derivatives of cymantrene by subsequent treatment with electrophilic reagents.Similar reactions in the case of diphenylphosphinocymantrene result in a selective preparation of 1,3-disubstituted derivatives.The metallation orientation is established by chemical methods and NMR-LIS (lanthanide-induced shift) techniques.A full assignment of signals in the PMR and 13C NMR spectra of the studied monosubstituted cymantrene derivatives has been effected.
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