Synthesis and Antimicrobial Activity of 2-(4-(Hydroxyalkyl)-1<i>H</i>
-1,2,3-triazol-1-yl)-<i>N</i>
-substituted propanamides
作者:C.P. Kaushik、Raj Luxmi
DOI:10.1002/jhet.2988
日期:2017.11
2,3‐triazoles having amide linkage and hydroxyl group) have been synthesized from click reaction between terminal alkyne and 2‐azido‐N‐substituted propanamide (generated in situ from reaction of 2‐bromo‐N‐substituted propanamide and sodium azide) and characterized by FTIR, 1H NMR, 13C NMR spectroscopy, and HRMS. All the newly synthesized triazoles were tested in vitro for antimicrobialactivity against
一系列21 21 2-(4-(羟烷基)-1 H -1,2,3-三唑-1-基)-N-取代的丙酰胺(1,4-二取代的1,2,3-三唑具有酰胺键和羟基是由末端炔烃与2-叠氮基-N-取代的丙酰胺(由2-溴-N - N取代的丙酰胺和叠氮化钠的反应原位生成)之间的点击反应合成的,其特征在于FTIR,1 H NMR,13 C NMR光谱和HRMS。所有新合成的三唑均在体外测试了对四种细菌培养物(大肠杆菌,产气肠杆菌,肺炎克雷伯菌,金黄色葡萄球菌和两种真菌培养物:白色念珠菌和黑曲霉。合成的1,4-二取代的1,2,3-三唑类对被测菌株显示出中等至良好的抗菌潜力。
Facile expeditious one-pot synthesis and antifungal evaluation of disubstituted 1,2,3-triazole with two amide linkages
作者:C. P. Kaushik、Raj Luxmi
DOI:10.1080/00397911.2017.1369124
日期:2017.12.2
A library of twenty five amide linked 1,4-disubstituted 1,2,3-triazoles have been prepared through a facile expeditious synthetic protocol involving Cu(I) mediated cyclization of N-(2-methylbut-3-yn-2-yl)aromatic amides and in situ generated 2-azido-N-substituted propanamides. Structures of newly synthesized compounds (5a-5y) were confirmed by analytical techniques, such as FTIR, H-1 NMR, C-13 NMR, and HRMS. In vitro antifungal activity was also examined against two fungal strains Candida albicans and Aspergillus niger by serial dilution method. The compounds 5m and 5w exhibited appreciable potent activity.[GRAPHICS].
US3991202A
申请人:——
公开号:US3991202A
公开(公告)日:1976-11-09
US4017631A
申请人:——
公开号:US4017631A
公开(公告)日:1977-04-12
Unbalanced-Ion-Pair-Catalyzed Nucleophilic Fluorination Using Potassium Fluoride
作者:Wangbing Li、Zhichao Lu、Gerald B. Hammond、Bo Xu
DOI:10.1021/acs.orglett.1c03887
日期:2021.12.17
An unbalanced ion pair promoter (e.g., tetrabutylammonium sulfate), consisting of a bulky and charge-delocalized cation and a small and charge-localized anion, greatly accelerates nucleophilic fluorinations using easy handling KF. We also successfully converted an inexpensive and commercially available ion-exchange resin to the polymer-supported ion pair promoter (A26–SO42–), which could be reused