N′-(3-Amino-1H-isoindol-1-ylidene)-R-carbohydrazides and Their Amide-Type Isomerism
作者:Olha V. Hordiyenko、Angelina V. Biitseva、Mikhail Yu. Kornilov、Nicolas Brosse、Alexandre Hocquet、Brigitte Jamart-Grégoire、Oleg V. Shishkin、Roman I. Zubatyuk
DOI:10.1002/ejoc.200600063
日期:2006.6
the solid state and in solution have been studied by X-ray crystallography, NMR spectroscopy, and quantum calculations. (E)/(Z) amide-type isomerism and the dependence of the isomeric ratio upon steric effects and solvent polarity are discussed. The thermodynamic parameters of (E) (Z) isomerization were determined by 1H NMR dynamic spectroscopy. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany
以良好的收率合成了一系列 N'-(3-amino-1H-isoindol-1-ylidene) 烷基(芳基,杂芳基)碳酰肼,并通过 X 研究了它们在固态和溶液中的结构和构象行为射线晶体学、核磁共振光谱和量子计算。(E)/(Z) 酰胺型异构现象和异构比对空间效应和溶剂极性的依赖性进行了讨论。(E) (Z)异构化的热力学参数由1H NMR动态光谱测定。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006)