摘要:
1D H-1 and C-13, and 2D H-1 NOESY NMR were used to establish that cyanoacetylhydrazones of aliphatic and aromatic aldehydes and ketones in CDCl3 and (CD3)(2)SO Solutions have a linear structure, exist as a mixture of geometric isomers by the C=N bond, and exhibit hindered amide rotation.