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1 H and 13 C NMR spectra of N ‐substituted morpholines
Author(s) -
Katritzky Alan R.,
Akhmedov Novruz G.,
Yang Hongfang,
Dennis Hall C.
Publication year - 2005
Publication title -
magnetic resonance in chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.483
H-Index - 72
eISSN - 1097-458X
pISSN - 0749-1581
DOI - 10.1002/mrc.1602
Subject(s) - chemistry , morpholine , two dimensional nuclear magnetic resonance spectroscopy , dept , protonation , carbon 13 nmr satellite , nmr spectra database , proton nmr , spectral line , stereochemistry , nuclear magnetic resonance spectroscopy , fluorine 19 nmr , carbon 13 nmr , ring (chemistry) , crystallography , organic chemistry , ion , physics , astronomy
Abstract 1 H and 13 C NMR data for N ‐substituted morpholines 1 – 20 were measured using 1D (DEPT, 1D NOE difference) and 2D NMR spectroscopic methods including 1 H– 1 H COSY, long‐range 1 H– 1 H COSY, NOESY, gHMBC and gHMQC experiments. At room temperature the 1 H NMR spectra of protonated compounds 2 and 9 show the chair conformation for the morpholine ring. Spin–spin coupling constants were deduced from the resolution‐enhanced proton spectra. Copyright © 2005 John Wiley & Sons, Ltd.