نتایج جستجو برای: zinc compounds
تعداد نتایج: 297332 فیلتر نتایج به سال:
Resistance to traditional antifungal drugs has increased significantly over the past three decades, making identification of novel antifungal agents and new targets an emerging priority. Based on the extraordinary zinc requirement of several fungal pathogens and their well-established sensitivity to zinc deprivation, we developed an efficient cell-based screen to identify new antifungal drugs t...
A review of the present state of organozinc coordination chemistry. with special emphasis on compounds of the type RZnX is given. Their preparation as well as some factors determining their structure and stability are discussed. Certain organozinc coordination compounds have been found to be effective catalysts for cyclo-oligomerization and polymerization reactions. in particular of oxygen-cont...
The chemical procedure was formerly achieved by the preliminary formation of aryl-lithium reagents followed by transmetallation with zinc halides. Nevertheless, this method is not easily achieved with aryl compounds bearing reactive functional groups such as ketone, nitrile or ester, since very low reaction temperatures are required. Alternatively, the Rieke method, which uses activated zinc ob...
Synthesis and reactivity of monomeric magnesium and zinc silyl compounds To(M)M-Si(SiHMe2)3 and To(M)M-Si(SiMe3)3 are described (To(M) = tris(4,4-dimethyl-2-oxazolinyl)phenylborate). The magnesium compounds react slowly with water and air, while the zinc compounds are inert. With CO2, To(M)Mg-Si(SiHMe2)3 provides To(M)MgO2CSi(SiHMe2)3 through CO2 insertion, whereas To(M)Zn-Si(SiHMe2)3 affords T...
One hundred thirty-four putative Bacillus isolates were recovered from soybean rhizosphere soils of Nimar region to select effective zinc solubilizers for increased assimilation of zinc (Zn) in soybean seeds. These isolates were screened in vitro for zinc-solubilization ability on Tris-minimal agar medium supplemented separately with 0.1% zinc in the form of zinc oxide, zinc phosphate, and zinc...
Background: The purpose of this study was to investigate the effect of copper and aluminum-zinc oxide nanoparticles and their synergistic effects with conventional biocides against Bacillus cereus. Methods: Synthesis of copper-zinc oxide, aluminum-zinc oxide nanoparticles performed via co- precipitation method and nanoparticle properties were investigated using FTIR, XRD and TEM. The antimicro...
C216 also a potent inhibitor of (Zn/Zn)bLAP. This combined approach provided insights on interaction of bLAP with sulphydryl-containing compounds, showing that metal exchange in site 1 modulates binding to these molecules that, depending on metal nature, may result as enzyme substrates or inhibitors. Work supported by FIRB project from Italian board for education.
در این رساله، واکنش شیمیایی بین گاز متان و ترکیبات سولفات باریم، سولفات استرونسیم، اکسید نیکل و دی اکسید تیتانیم مورد مطالعه قرار گرفته است. کارهای آزمایشگاهی و محاسبات ترمودینامیکی نشان می دهند که سولفات باریم(baso4) در واکنش شیمیایی با گاز متان به سولفید باریم (bas) احیاء می گردد که این ترکیب خوراک اصلی در تولید تمام ترکیبات مربوط به باریم می باشد. همچنین مشخص گردید که در این مورد اکسید روی ا...
Halide, Pyridine Complexes, Zinc, X-Ray Data Zinc dichloride reacts with aminomethylpyridine (AMP) to the corresponding 1:1 adduct 1, whereas ZnBr2 forms an ionic 1:2 complex of the type [(AMP)2ZnBr]+ Br~ 2, which loses one neutral coligand upon heating in M e-C (0)0E t to yield nearly insoluble (AMP)ZnBr2 3. The condensation reaction of these compounds with acetone yields propylideneaminomethy...
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