摘要 本文介绍了 3-苯乙基-2,4(1 H ,3 H )-喹唑啉二酮通过硼氢化钠促进的 3-苯乙基亚氨基-2-吲哚酮环氧化膨胀的意外合成。1 H NMR光谱图显示平衡中存在两种构象异构体,第一种是交错构象,第二种是gauche结构。3-苯乙基-2,4(1 H ,3 H )-喹唑啉二酮的晶体结构揭示了与喹唑啉片段和苯环反排列的交错构象。喹唑啉二酮分子通过 NH 部分和相邻羰基之间的两个 NH⋯O 氢键结合成中心对称二聚体。
Abstract In this work it was established that dopamine's reaction with isatin produces the respective spiroisoquinoline through a Pictet-Spengler reaction whilst phenylethylamines, having less activated aromatic rings (tyramine and phenylethylamine), produce the respective imine as a mixture of stereoisomers E and Z. This article analyses the spectroscopic and structural patterns of the stereoisomers
摘要 在这项工作中,确定多巴胺与靛红通过 Pictet-Spengler 反应产生各自的螺异喹啉,而苯乙胺,具有较少活化的芳环(酪胺和苯乙胺),产生各自的亚胺,作为立体异构体 E 和 Z 的混合物。文章分析了获得的立体异构体 (E/Z) 的光谱和结构模式,并提出了获得它们作为主要产品所需的实验条件。
Synthesis and structural analysis of 3-phenylethyl-2,4(1H,3H)-quinazolinediones
3-phenylethylimino-2-indolinone ring promoted by sodiumborohydride. The 1 H NMR spectroscopic patterns showed the presence of two conformational isomers in equilibrium, the first was a staggered conformation and the second was a gauche structure. The crystal structure of 3-phenylethyl-2,4(1 H ,3 H )-quinazolinedione revealed a staggered conformation with the quinazoline fragment and the phenyl ring in anti -arrangement
摘要 本文介绍了 3-苯乙基-2,4(1 H ,3 H )-喹唑啉二酮通过硼氢化钠促进的 3-苯乙基亚氨基-2-吲哚酮环氧化膨胀的意外合成。1 H NMR光谱图显示平衡中存在两种构象异构体,第一种是交错构象,第二种是gauche结构。3-苯乙基-2,4(1 H ,3 H )-喹唑啉二酮的晶体结构揭示了与喹唑啉片段和苯环反排列的交错构象。喹唑啉二酮分子通过 NH 部分和相邻羰基之间的两个 NH⋯O 氢键结合成中心对称二聚体。
Synthesis, structure elucidation, DNA interaction, biological evaluation, and molecular docking of an isatin-derived tyramine bidentate Schiff base and its metal complexes
作者:Natarajan Raman、Sivasangu Sobha、Liviu Mitu
DOI:10.1007/s00706-011-0699-8
日期:2012.7
AbstractThree new transition metalcomplexes [CuL2Cl2], [NiL2Cl2], and [ZnL2Cl2], where L = Schiffbase derived from isatin (1H-indole-2,3-dione) and tyramine (4-(2-aminoethyl)phenol), have been synthesized and characterized spectroscopically. The binding properties of these complexes with calf thymus DNA have been investigated by use of electronic absorption spectroscopy, viscosity measurement, cyclic