𝔖 Bobbio Scriptorium
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THE PROVENANCE AND COAL RANK OF JET BY CARBON-13 NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY

✍ Scribed by J. B. LAMBERT; J. S. FRYE; A. JURKIEWICZ

Book ID
115284415
Publisher
John Wiley and Sons
Year
1992
Tongue
English
Weight
435 KB
Volume
34
Category
Article
ISSN
0003-813X

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πŸ“œ SIMILAR VOLUMES

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## Abstract Carbon‐13 chemical shift assignments have been obtained for the naturally occurring __Cephalotaxus__ alkaloids, cephalotaxine, acetylcephalotaxine, harringtonine, isoharringtonine, drupacine and cephalotaxinone.

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## Abstract The ^13^C NMR spectra of several conjugated polyyne‐aldehydes and ketones are compared with those of the corresponding alcohols. All data show considerable effects similar to those observed in conjugated polyenes.