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Low-temperature 15N NMR spectra of reduced 1,3-heterocyclic systems

✍ Scribed by Yoshito Takeuchi; Trevor A. Crabb

Publisher
John Wiley and Sons
Year
1983
Tongue
English
Weight
155 KB
Volume
21
Category
Article
ISSN
0749-1581

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✦ Synopsis

The "N NMR spectra of the Ginside cis-fused conformer of perhydropyrido[1,2-~][1,3]thiazine shows a shielding of the nitrogen of 23.0 ppm relative to the trans-fused conformer. In contrast, "N shifts for the cisand trans-fused conformers of perhydro-oxazolo[3,4-a]pyridine and perhydrothiazolo[3,4-a]pyridine show corresponding shieldings of only 0.6 and 2.5 ppm, respectively.

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