Strained cyclobutane compounds: 1H NMR analysis of a new 1??substituted benzobicyclo [3.1. 1] heptene system

…, JP Girard, JC Rossi, JP Chapat

Index: Escale, R.; Khayat, A.; Girard, J. P.; Rossi, J. C.; Chapat, J. P. Organic Magnetic Resonance, 1981 , vol. 17, # 3 p. 217 - 221

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Citation Number: 5

Abstract

Abstract The 1 H 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 (4 J= 5.5 to 6 Hz and 8.5 Hz) were obtained for the cyclobutane ring.