Strained cyclobutane compounds:  1 H NMR analysis of a new 1‐substituted benzobicyclo[3.1.1]heptene system | Zendy

Escale R. | Zendy; Khayat A. | Zendy; Girard J. P. | Zendy; Rossi J. C. | Zendy; Chapat J. P. | Zendy

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Strained cyclobutane compounds: 1 H NMR analysis of a new 1‐substituted benzobicyclo[3.1.1]heptene system

Author(s) -

Escale R.,

Khayat A.,

Girard J. P.,

Rossi J. C.,

Chapat J. P.

Publication year - 1981

Publication title -

organic magnetic resonance

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.483

H-Index - 72

eISSN - 1097-458X

pISSN - 0030-4921

DOI - 10.1002/mrc.1270170318

Subject(s) - cyclobutane , heptene , coupling constant , ring (chemistry) , chemistry , spectral line , spin (aerodynamics) , proton , crystallography , stereochemistry , physics , bicyclic molecule , nuclear physics , organic chemistry , particle physics , thermodynamics , astronomy

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.

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