108207-36-9Relevant articles and documents
Conformational Preferences About Nsp2 - Csp2 Bond in N-Aryl- and N-(2'-Pyridyl)-camphorimides: A PMR Study
Vandana,Singh, R. M.,Verma, S. M.
, p. 724 - 728 (2007/10/02)
A number of N-aryl and N-(2'-pyridyl)-camphorimides (I-XII) have been prepared and their conformational analysis about the Nsp2 - Csp2 bond has been studied by PMR spectroscopy.The shielding parameters of β-methyl and o-substituent resonances demonstrate restricted rotation and non-planar conformations about the N - C bond and the preference of the sterically favoured conformation.Steric and electronic requirements of the sp2-hybridised nitrogen lone-pair are found to be effective in controlling the conformation about the N - C(pyridyl) bond. 13CNMR studies do not provide any valuable information about the different conformations.