62980-80-7Relevant articles and documents
THE ORIENTATION OF SUBSTITUTION IN METALLATION OF DIMETHYLAMINOMETHYL-, HYDROXYMETHYL- AND DIPHENYLPHOSPHIONO-CYMANTRENES
Loim, N. M.,Kondrat'Ev, P. V.,Solov'Eva, N. P.,Antonovich, V. A.,Petrovskii, P. V.,et al.
, p. 233 - 244 (2007/10/02)
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.