Strained cyclobutane compounds:1H NMR analysis of a new 1-substituted benzobicyclo[3.1.1]heptene system
摘要:
AbstractThe 1H NMR spectra of a number of new derivatives of benzobicyclo[3.1.1]heptene were examined and interpreted by using a single set of coupling constants. All the compounds belonging to this system are in a γ‐shaped configuration. Surprisingly, two different proton‐proton spin‐spin coupling constants (4J=5.5 to 6 Hz and 8.5 Hz) were obtained for the cyclobutane ring.
Strained cyclobutane compounds:1H NMR analysis of a new 1-substituted benzobicyclo[3.1.1]heptene system
摘要:
AbstractThe 1H NMR spectra of a number of new derivatives of benzobicyclo[3.1.1]heptene were examined and interpreted by using a single set of coupling constants. All the compounds belonging to this system are in a γ‐shaped configuration. Surprisingly, two different proton‐proton spin‐spin coupling constants (4J=5.5 to 6 Hz and 8.5 Hz) were obtained for the cyclobutane ring.