## Abstract The protonβcoupled ^13^C NMR spectra of 1β__trans__βmethoxyβ (2) and 1β__cis__βmethoxyβ1,3β__trans__βbutadiene (3) are consistent with a methoxy heavy atom planar conformation with __sβsyn__ and __sβanti__ orientations, respectively. __Ab initio__ 6β31G\* calculations confirmed such con
Complete analysis of the NMR spectra of cis- and trans-1-methoxy-1,3-butadiene
β Scribed by E. Diez; M. Rico
- Publisher
- Elsevier Science
- Year
- 1971
- Tongue
- English
- Weight
- 1009 KB
- Volume
- 37
- Category
- Article
- ISSN
- 0022-2852
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The proton spectrum of the isomeric mixture of &,cis-and cis,trans-1,3,5-triamino~clohexane was assigned with a 2D COSY experiment. Using Forrest's modified equation and the 2D J spectrum results, the conformations of the two isomers were analysed. The six-membered ring of the cis,trans isomer is fl
The proton and carbon spectra of the title compounds were completely assigned by the use of 2D NMR techniques including 2D INADEQUATE. Contradictory assignments from the literature were clariΓed and incomplete data completed. The validity of the assignments of proton spectra was checked by computer