4-Arylmethylisoxazol-5-one Derivatives − Novel Synthesis, Structural Studies, and Supramolecular Self-Assembly through Resonance-Assisted Hydrogen Bonding
作者:Giovanni Grassi、Giuseppe Bruno、Francesco Risitano、Francesco Foti、Francesco Caruso、Francesco Nicolò
DOI:10.1002/1099-0690(200112)2001:24<4671::aid-ejoc4671>3.0.co;2-z
日期:2001.12
derivatives are reported and are shown to have the expected different tautomeric arrangements. The unusual features of the NH-tautomer (3e) were interpreted in terms of the RAHB (resonance-assisted hydrogen bond) model and its relative stability was investigated by ab initio and DFT calculations.
通过新的温和的还原程序,使用含有柔性N-CH-CH基团的叔胺,通过新的温和的还原程序制备了芳基甲基异恶唑-5-酮(3)。并发工艺与还原竞争,产生了相当数量的链延伸产物(4)。报告了两种选择的芳基甲基衍生物的X射线结构,并显示具有预期的不同互变异构排列。用RAHB(共振辅助氢键)模型解释了NH-互变异构体(3e)的不寻常特征,并通过从头算和DFT计算研究了其相对稳定性。