Substituent effects on the cyclo-manganation reaction X-ray crystal structure of Mn{2-(nBu-N=CH) 5-(NO2) C6H3}(CO)4
作者:Colin Morton、David J. Duncalf、Jonathan P. Rourke
DOI:10.1016/s0022-328x(96)06663-6
日期:1997.3
The cyclometallation reaction between methylmanganese pentacarbonyl and a number of Schiff's bases has been studied. The dependence of the rate of reaction upon ligand substituents has been investigated, demonstrating a rate enhancement with more electron-rich ligands.
Design, synthesis and biological evaluation of imidazole and oxazole fragments as HIV-1 integrase-LEDGF/p75 disruptors and inhibitors of microbial pathogens
作者:Thompho J. Rashamuse、Angela T. Harrison、Salerwe Mosebi、Sandy van Vuuren、E. Mabel Coyanis、Moira L. Bode
DOI:10.1016/j.bmc.2019.115210
日期:2020.1
We describe here the synthesis of libraries of novel 1-subtituted-5-aryl-1H-imidazole, 5-aryl-4-tosyl-4,5-dihydro-1,3-oxazole and 5-aryl-1,3-oxazole fragments via microwave (MW)-assisted cycloaddition of para-toluenesulfonylmethyl isocyanide (TosMIC) to imines and aldehydes. The compounds obtained were biologicallyevaluated in an AlphaScreen HIV-1 IN-LEDGF/p75 inhibition assay with six imidazole-based
[reaction: see text] The first successful catalytic oxidation procedure for the chemoselective conversion of imines to nitrones is reported. The reaction is general, high yielding, and user and environmentally friendly, and furnishes a solution to the yet unanswered issue of regioselective access to nitrones by oxidation of nitrogen derivatives.