4-(2-苯乙基)-5-吡啶基-1,2,4-三唑-3-硫酮的一些新的N-糖苷是通过卤代糖与4,5-二取代3H-1,2的偶联反应合成的, 4-三唑-3-硫酮在氰化汞和无水硝基甲烷作为溶剂存在下,然后使用无水氨的甲醇溶液脱保护。所有上述化合物均通过红外、1 H NMR光谱、质谱和元素分析进行了充分表征。
Synthesis and structure elucidation of some new thioether derivatives of 1,2,4-triazoline-3-thiones and their antimicrobial activities
摘要:
5-(4-Pyridinyl)-4-substituted-2,4-dihydro-3H-1,2,4-triazole-3-thiones and 5-(4-pyridinyl)-4-substituted-3-(benzoylmethyl)thio 4H-1,2,4-triazoles were synthesized. The structures of original nine compounds were confirmed by IR, H-1 NMR, mass spectral methods and elemental analysis. The antibacterial, antifungal and antimycobacterial activities, together with those of known intermediate 1,4-disubstituted thiosemicarbazides, were reported. (C) 2001 Elsevier Science S.A. All rights reserved.
SILICA PHOSPHORIC ACID/NaNO<sub>2</sub> AS A NOVEL HETEROGENEOUS SYSTEM FOR THE COUPLING OF THIOLS TO THEIR CORRESPONDING DISULFIDES
作者:Mohammad Ali Zolfigol、Farhad Shirini、Khosrow Zamani、Efat Ghofrani、Satar Ebrahimi
DOI:10.1080/10426500490474842
日期:2004.11.1
Silica phosphoric acid was prepared vis reaction of silica chloride (I) and phosphoric acid. Thiols can be readily converted to their corresponding thionitrites with a combination of silica phosphoric acid (II), wet Sio(2), and sodium nitrite in dichloromethane at room temperature. Disulfides result from the homolytic cleavage of the sulfur-nitrogen bond of the unstable thionitrite and subsequent coupling of the resultant thiyl radicals.