Aromatic solvent-induced shifts in the 1H-NMR spectra of nitrones
摘要:
In the H-1-NMR spectra of model compounds 1-3 in hexadeuteriobenzene the signals of protons at the E-side of the nitrone group are more extensively shifted to higher field by the effect of the aromatic solvent than the signals of protons at the Z-side. Utilizing this effect the existence of usual C,N-dialkylnitrones in the Z-form was confirmed. C-Acylnitrones as 8 and 9, however, exist in both of the isomeric forms, the equilibrium being strongly influenced by the solvent.
Tasz, Maciej K.; Plenat, Francoise; Cristau, Henri-Jean, Phosphorus, Sulfur and Silicon and the Related Elements, 1991, vol. 57, # 1/2, p. 143 - 146
作者:Tasz, Maciej K.、Plenat, Francoise、Cristau, Henri-Jean、Skowronski, Romuald
DOI:——
日期:——
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作者:INGENDOH A.、 LINDEL H.、 BERSCHAUER F.、 JONG A.、 SCHEER M.
DOI:——
日期:——
Aromatic solvent-induced shifts in the 1H-NMR spectra of nitrones
作者:Hans Günter Aurich、Michael Franzke、Hans Peter Kesselheim
DOI:10.1016/s0040-4020(01)88126-6
日期:——
In the H-1-NMR spectra of model compounds 1-3 in hexadeuteriobenzene the signals of protons at the E-side of the nitrone group are more extensively shifted to higher field by the effect of the aromatic solvent than the signals of protons at the Z-side. Utilizing this effect the existence of usual C,N-dialkylnitrones in the Z-form was confirmed. C-Acylnitrones as 8 and 9, however, exist in both of the isomeric forms, the equilibrium being strongly influenced by the solvent.