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1H NMR spectra of cis-2,6-diphenylpiperidines and cis-2,6-diphenyl-4-piperidones

✍ Scribed by N. Arumugam; M. Sundharavadivelu; S. Sivasubramanian; D. A. Wilson

Publisher
John Wiley and Sons
Year
1987
Tongue
English
Weight
231 KB
Volume
25
Category
Article
ISSN
0749-1581

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✦ Synopsis

H NMR spectra of t-3-ethyl-r-2,~-6-diphenylpiperidine, t-3-ethyl-r-2,~-6-dipheny1-4-piperidone and several related compounds have been obtained in deuteriochloroform and deuteriotrifluoroacetic acid solutions, and compared with the spectra of their hydrochlorides in deuteriochloroform-hexadeuteriodimethy! sulphoxide solutions. The effects of the structural changes 4-CH2 -+ 4-C=0, =NH -+ =NMe and fN: -+ z N H ( 2 h D ) have been observed on the chemical shifts of ring and substituent protons, and on the non-equivalence of the diastereotopic protons of the ethyl groups.

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