has been characterized by IR and NMR spectroscopy, mass spectrometry, and X-ray diffraction analysis methods. Quantum-chemical simulations using the DFT B3LYP/6-311++G** method have reproduced the experimental geometry of isomeric acetyl[2,1-b]furans and indicated their close thermodynamic stability. However, the Fukui indices of the reactivity f− have indicated the preference of the primary attack of
根据反应条件的不同,
2-乙基萘[2,1- b ]
呋喃的酰化作用会导致1-乙酰基,5-乙酰基和1,5-
二乙酰基衍
生物的比例发生很大变化。成分,其结构已通过IR和NMR光谱,质谱和X射线衍射分析方法进行了表征。使用DFT B3LYP / 6-311 ++ G **方法进行的量子
化学模拟再现了异构的乙酰基[2,1- b ]
呋喃的实验几何形状,并表明它们具有接近的热力学稳定性。然而,反应性的指标福井˚F -已表明电体在C的主要攻击的偏好5位置(˚F -与C 1位置(f − = 0.06)相比= 0.18 )。