Nuclear magnetic resonance investigations of small rings. 3. Carbon-13 NMR spectra of benzo-annulated and exo- and endo-benzocyclobuta-annulated derivatives of exo-cyclopropanorbornane
Nuclear magnetic resonance investigations of small rings. 3. Carbon-13 NMR spectra of benzo-annulated and exo- and endo-benzocyclobuta-annulated derivatives of exo-cyclopropanorbornane