نتایج جستجو برای: tert butyl hydroperoxide

تعداد نتایج: 21931  

Journal: :Journal of the Indian Chemical Society 2021

The new cis-dioxomolybdenum (VI) complexes [MoO2(L2)(H2O)] (2) and [MoO2(L3)(H2O)] (3) containing the tridentate hydrazone-based ligands (H2L2 = N'-(3,5-di-tert-butyl-2-hydroxybenzylidene)-4-methylbenzohydrazide H2L3 N'-(2-hydroxybenzylidene)-2-(hydroxyimino)propanehydrazide) have been synthesized characterized via IR, 1H 13C NMR spectroscopy, mass spectrometry, single crystal X-ray diffraction...

In this study, stable lattices of terpolymer butyl acrylate, methyl methacrylate, and styrene were synthesized by a mini-emulsion polymerization technique using tert-butyl hydroperoxide TBHP/Fe2 /ethylenediaminetetraacetic acid/sodium formaldehyde sulfoxylate redox initiators at room temperature, and the kinetics of the reaction were studied. The reaction rate was obtained from periodic samplin...

Journal: :Reaction Kinetics, Mechanisms and Catalysis 2022

Abstract The epoxidation reaction of the vegetable oil derivative methyl oleate with tert-butyl hydroperoxide in presence amorphous Ti–SiO 2 catalysts prepared by different methods using various silica sources was carried out. conditions were optimized. relation between properties such as specific surface area well titanium dispersion and catalytic performance focus investigation. Based on resu...

Journal: :Journal of chemical research 2021

Silver/manganese dioxide (Ag@MnO 2 ) nanorods are synthesized and characterized by scanning electron microscopy, transmission energy dispersive X-ray spectroscopy, powder diffraction, photoelectron spectroscopy. It was discovered that Ag@MnO can realize hydrogen-borrowing reactions in high yields also effective for the synthesis of tert-butyl esters from aryl cyanides hydroperoxide a short peri...

Journal: :Chemical communications 2012
Katherine E Djernes Melissa Padilla Magi Mettry Michael C Young Richard J Hooley

Functionalized cavitands have been shown to self-fold via coordination of Fe(II) salts and effect catalytic C-H oxidation reactions of unfunctionalized alkanes under mild aqueous conditions in the presence of tert-butyl hydroperoxide as co-oxidant. Secondary and tertiary C-H bonds can be converted to ketones and alcohols, respectively, and ethers can be converted to esters. The cavitands retain...

Journal: :Journal of the American Chemical Society 2004
Michelle C Y Chang Arnd Pralle Ehud Y Isacoff Christopher J Chang

We present the synthesis, properties, and biological applications of Peroxyfluor-1 (PF1), a new type of optical probe for intracellular imaging of hydrogen peroxide in living biological samples. PF1 utilizes a boronate deprotection mechanism to provide unprecedented selectivity and optical dynamic range for detecting H2O2 in aqueous solution over similar reactive oxygen species including supero...

Journal: :Chemical communications 2014
Lei Wang Hui Zhu Songjin Guo Jiang Cheng Jin-Tao Yu

The tert-butyl hydroperoxide (TBHP) promoted sequential silylation and aromatisation of isonitriles was developed, where the silyl group was regioselectively installed at the 6-position of phenanthridines. This procedure tolerates a series of functional groups, such as fluoro, chloro, acetyl, methoxy carbonyl, cyano and trifluoromethyl. The addition of a silyl radical to the isonitrile followed...

Journal: :General physiology and biophysics 2006
A Lábajová J Kofránek P Kriváková Z Cervinková Z Drahota

The changes in mitochondrial membrane potential (Deltapsi(m)) were used as an indicator for evaluating the mitochondrial permeability transition pore (MPTP) function. We found that in situ mitochondria in digitonin-permeabilized hepatocytes were coupled and responded to the addition of substrates, inhibitors and uncouplers. Ca(2+)-induced Deltapsi(m) dissipation was caused by MPTP opening becau...

Journal: :Organic & biomolecular chemistry 2012
Bernd Schmidt Stefan Krehl Eric Jablowski

An assisted tandem catalytic transformation of diallyl amines and diallyl ethers into N-aryl pyrroles and furans, respectively, is described. The sequence relies on ring closing metathesis followed by dehydrogenation of the initially formed dihydropyrroles and dihydrofurans. Both steps are Ru-catalyzed, but the sequence requires only one precatalyst, because conversion of the metathesis catalys...

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