合成了一系列具有 1H-和 2H-四唑配体(2-异丙基-5-R-2H-四唑和 1H-四唑-1-基羧酸)的钯 (II) 配合物。通过 1H 和 13C NMR 光谱、高分辨率质谱和单晶 X 射线衍射分析证实了所得化合物的结构。根据分光光度法数据,复合物与 DNA 的结合较弱。在体外研究了所得钯配合物的细胞毒活性。
Alkylation of 5-substituted NH-tetrazoles by alcohols in the superacid CF3SO3H
作者:Anna D. Lisakova、Dmitry S. Ryabukhin、Rostislav E. Trifonov、Vladimir A. Ostrovskii、Aleksander V. Vasilyev
DOI:10.1016/j.tetlet.2015.11.005
日期:2015.12
Reactions of 5-substituted NH-tetrazoles with alcohols in the superacid CF3SO3H have been studied. Both the structure of the tetrazole and the nature of alcohol were found to dramatically influence the selectivity of the reaction and yields of products. Tetrazoles bearing phenyl, electron-donating aryl, or benzyl groups at the 5-position, have been alkylated using various alcohols (including MeOH and EtOH) in CF3SO3H upon heating at 60 degrees C for 0.3-12 h to afford 2-alkyl-2H-tetrazoles in 30-98% yields. (C) 2015 Elsevier Ltd. All rights reserved.