Synthesis of 2,2`-(1,4-Phenylene)bis-3,4-dihydro-2H-1,3-thiazin-4-ones and their Facile Recyclization to 2,2`-(1,4-Phenylene)bis(pyrimidin-4-one) and/or 2,2`-(1,4-Phenylene)-bis-(thieno[2,3-d]pyrimidin-4(1H)-one) Derivatives
作者:Raafat M. Shaker、Yusria R. Ibrahim、Fathy F. Abdel-Latif、Asmaa Hamoda
DOI:10.1515/znb-2010-0915
日期:2010.9.1
efficient and direct procedure for the synthesis of 2,2`-(1,4-phenylene)bis-3,4-dihydro-2H-1,3- thiazin-4-one derivatives is described. Oxidation of the latter and their base-catalyzed recyclization has been studied. The products were characterized by elemental analyses, and IR, 1H NMR, and 13C NMR spectra. Graphical Abstract Synthesis of 2,2`-(1,4-Phenylene)bis-3,4-dihydro-2H-1,3-thiazin-4-ones and
描述了一种用于合成 2,2`-(1,4-亚苯基)bis-3,4-dihydro-2H-1,3-thiazin-4-one 衍生物的有效且直接的方法。已经研究了后者的氧化和它们的碱催化再循环。产物通过元素分析、IR、1H NMR和13C NMR光谱表征。2,2`-(1,4-Phenylene)bis-3,4-dihydro-2H-1,3-thiazin-4-ones 的图形摘要合成及其对 2,2`-(1,4- Phenylene)bis(pyrimidin-4-one) 和/或 2,2`-(1,4-Phenylene)-bis-(thieno[2,3-d]pyrimidin-4(1H)-one) 衍生物