79749-43-2Relevant articles and documents
CYCLOHEPTATRIENE DIMERS: NEW PRECURSORS OF DIAMANTANE
Turecek, Frantisek,Hanus, Vladimir,Sedmera, Petr,Antopiusova, Helena,Mach, Karel
, p. 1474 - 1485 (2007/10/02)
Dimerization of cycloheptatriene, catalyzed by titanium complexes , afforded pentacyclo3,7.04,14.06,11>tetradeca-8,12-diene (I) (10percent) and pentacyclo2,8.05,14.07,11>tetradeca-3,12-diene (II) (90percent).Structure of both dimers and their derivatives was determined by means of 1H-NMR, 13C-NMR and mass spectra.On heating, the diene II was converted into the more stable isomer I.On hydrogenation and further catalytic isomerisation, both I and II gave diamantane in high yield.