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Residually coupled attached proton test in the 13C NMR assignment of natural products

✍ Scribed by Phillip Crews; Steve Naylor; Barbara L. Myers; James Loo; Lawrence V. Manes

Publisher: John Wiley and Sons
Year: 1985
Tongue: English
Weight: 348 KB
Volume: 23
Category: Article
ISSN: 0749-1581
DOI: 10.1002/mrc.1260230816

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✦ Synopsis

Attached proton test (APT) spectra acquired with residual coupling (termed RECAPT) can be advantageous in assigning "C NMR spectra of complex natural products. RECAPT was applied to the analysis of the =C NMR spectra of two terpene marine natural products to iUustrate its advantages over APT in situations where peaks are accidentally degenerate, or where large J(CH) values give misleading phase APT peaks.

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