The umpolung of substituent effect in nucleophilic aromatic substitution. A new approach to the synthesis of N,N-disubstituted melamines (triazine triskelions) under mild reaction conditions
作者:Beata Kolesinska、Zbigniew J. Kaminski
DOI:10.1016/j.tet.2009.03.017
日期:2009.5
By the umpolung of substituent effect 1,3,5-triazines substituted with three dialkylamino groups were prepared under mild reaction conditions by treatment of cyanuric chloride with tertiary amines. Quaternary N-triazinylammonium salts were identified as reactive intermediates activating the triazine ring and strongly promoting the persubstitution of all chlorine atoms. The final degradation of intermediate
Synthesis, Spectra, and Theoretical Investigations of 1,3,5-Triazines Compounds as Ultraviolet Rays Absorber Based on Time-Dependent Density Functional Calculations and three-Dimensional Quantitative Structure-Property Relationship
作者:Xueding Wang、Yilian Xu、Lu Yang、Xiang Lu、Hao Zou、Weiqing Yang、Yuanyuan Zhang、Zicheng Li、Menglin Ma
DOI:10.1007/s10895-018-2235-2
日期:2018.3
A series of 1,3,5-triazines were synthesized and their UV absorption properties were tested. The computational chemistry methods were used to construct quantitative structure-property relationship (QSPR), which was used to computer aided design of new 1,3,5-triazines ultraviolet rays absorber compounds. The experimental UV absorption data are in good agreement with those predicted data using the Time-dependent
Targeting the Erythrocytic and Liver Stages of Malaria Parasites with<i>s</i>-Triazine-Based Hybrids
作者:Catarina A. B. Rodrigues、Raquel F. M. Frade、Inês S. Albuquerque、Maria J. Perry、Jiri Gut、Marta Machado、Philip J. Rosenthal、Miguel Prudêncio、Carlos A. M. Afonso、Rui Moreira
DOI:10.1002/cmdc.201500011
日期:2015.5
result was sub‐micromolar activity against cultured erythrocytic‐stageparasites of hybrid molecules containing one or two 8‐aminoquinoline moieties. These compounds were not clearly toxic to human cells. The most effective blood‐schizontocidal s‐triazine derivatives were then screened for activity against the liverstage of malariaparasites. The s‐triazine hybrid containing two 8‐aminoquinoline moieties
筛选了基于s-三嗪的杂种的面向多样性的文库,以研究其对氯喹抗性恶性疟原虫W2菌株的活性。最惊人的结果是对含有一个或两个8-氨基喹啉部分的杂合分子的培养的红细胞阶段寄生虫具有亚微摩尔活性。这些化合物对人体细胞没有明显的毒性。然后筛选出最有效的血液杀schizontosdal s -triazine衍生物对抗疟原虫肝阶段的活性。所述š含有两个8-氨基喹啉结构部分和一个氯原子成为最有力的抵抗嗪混合伯氏疟原虫肝阶段感染,在低纳摩尔区域活跃,并在大鼠肝微粒体中具有良好的代谢稳定性。这些结果表明,基于s-三嗪-8-氨基喹啉的杂种作为双阶段抗疟药是铅优化的极佳起点。
4,6-Bis- and 2,4,6-tris-(N,N-dialkylamino)-s-triazines: synthesis, NMR spectra and restricted rotations
作者:Alan R. Katritzky、Daniela C. Oniciu、Ion Ghiviriga、Richard A. Barcock
DOI:10.1039/p29950000785
日期:——
Syntheses of various symmetrically and non-symmetrically trisubstitutedtriazines are reported. Dynamic NMR (1H and 13C) experiments demonstrate that 2,4,6-tris(dialkylamino)-s-triazines show correlated rotations of the alkyl groups in the dialkylamino moieties. Unsymmetrical 2-chloro-, 2-alkoxy- and 2-aryloxy-4,6-bis(di-n-alkylamino)-s-triazines display two non-equivalent n-alkyl groups, due to the
Somederivatives of 1,3,5-triazine were prepared with excellent yields by nucleophilic reactions between cyanuric chloride and some nucleophiles under mild conditions.