The legend of 4-aminocoumarin: use of the Delépine reaction for synthesis of 4-iminocoumarin
作者:Ahmed A. Al-Amiery、Abdul Amir H. Kadhum、Y. K. Al-Majedy、Hiba H. Ibraheem、Ali A. Al-Temimi、Redah I. Al-Bayati、Abu Bakar Mohamad
DOI:10.1007/s11164-012-0694-7
日期:2013.3
Use of the Delépine reaction for synthesis of 4-aminocoumarin from 4-chlorocoumarin was not successful. The product was 4-iminocoumarin instead of 4-aminocoumarin. The 4-iminocoumarin was characterized by elemental analysis and spectral studies (FT-IR, 1H NMR, 13C NMR). Density functional theory calculations for 4-iminocoumarin were performed using molecular structure with optimized geometry. Molecular orbital calculations provided a detailed description of the orbitals, including spatial characteristics, nodal patterns, and the contributions of individual atoms.
使用Delépine反应从4-氯香豆素合成4-氨基香豆素没有成功。产物是4-亚氨基香豆素,而不是4-氨基香豆素。通过元素分析和光谱研究(FT-IR、1H NMR、13C NMR)对4-亚氨基香豆素进行了表征。使用具有优化几何结构的分子结构对4-亚氨基香豆素进行了密度泛函理论计算。分子轨道计算提供了轨道的详细描述,包括空间特征、节点模式和单个原子的贡献。