Assignment of the 1H‐ and 13C‐NMR spectra of congested helicenes using two‐dimensional NMR methods: Phenanthro[3′,4′:3,4]phenanthro[2,1‐b]thiophene

Andrew S. Zektzer; John G. Stuart; Gary E. Martin; Raymond N. Castle

Journal ArticleOPEN ACCESS

Assignment of the 1H‐ and 13C‐NMR spectra of congested helicenes using two‐dimensional NMR methods: Phenanthro[3′,4′:3,4]phenanthro[2,1‐b]thiophene

Journal of Heterocyclic Chemistry (1986) 23(5) 1587-1593

DOI: 10.1002/jhet.5570230566

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Abstract

Phenanthro[3′,4′:3,4]phenanthro[2,1‐b]thiophene has been prepared and its highly congested proton and carbon nmr spectra assigned. The nmr assignments required concerted utilization of two‐dimensional nmr techniques which included: COSY, direct and long range optimized heteronuclear chemical shift correlation and heteronuclear relayed coherence transfer. Copyright © 1986 Journal of Heterocyclic Chemistry

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Zektzer, A. S., Stuart, J. G., Martin, G. E., & Castle, R. N. (1986). Assignment of the 1H‐ and 13C‐NMR spectra of congested helicenes using two‐dimensional NMR methods: Phenanthro[3′,4′:3,4]phenanthro[2,1‐b]thiophene. Journal of Heterocyclic Chemistry, 23(5), 1587–1593. https://doi.org/10.1002/jhet.5570230566

Assignment of the 1H‐ and 13C‐NMR spectra of congested helicenes using two‐dimensional NMR methods: Phenanthro[3′,4′:3,4]phenanthro[2,1‐b]thiophene

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