نتایج جستجو برای: diazonium salt
تعداد نتایج: 80389 فیلتر نتایج به سال:
Molecular grafting of diazonium is a widely employed surface modification technique. Local electrografting of this species is a promising approach to surface doping and related properties tailoring. The instability of diazonium cation complicates this process, so that this species was generated in situ in many reported studies. In this Article, we report the egress transfer of aryl diazonium ca...
aprotic diazotization of anthranilic acid with isoamylnitrite or amylnitrite gave benzenediazonium-2- carboxylate. subsequent thermal decomposition of this diazonium salt (in situ) in 1,2-dichloroethane as a solvent at 85oc and in the presence of 2,5-diethyl-3,4-diphenylcyclopentadienonaes a trapping agent gave 1,4-diethyl-2, 3-diphenylnaphthalene in high yield, after loss of carbon monoxide. a...
W/E RECENTLY reported a new colorimetric assay for glutamic-oxalacetic transaminase which involves coupling the oxalacetate formed in the enzymatic reaction with a diazonium salt (1, 2). Because of the greater specificity of the diazonium salt for the product of the reaction and the minimum number of manipulations involved, this procedure is simpler and more accurate than previously reported pr...
Aprotic diazotization of anthranilic acid with isoamylnitrite or amylnitrite gave benzenediazonium-2- carboxylate. Subsequent thermal decomposition of this diazonium salt (in situ) in 1,2-dichloroethane as a solvent at 85OC and in the presence of 2,5-diethyl-3,4-diphenylcyclopentadienonaes a trapping agent gave 1,4-diethyl-2, 3-diphenylnaphthalene in high yield, after loss of carbon monoxid...
A number of new diazonium salt derivatives of 7-chloro-5-phenyl-3-(phenyl-n-substituted)-diazo-1,3-dihydro-benzo[e][1,4]-diazepin-2-one (IVa-l) from 7-chloro-5-phenyl-1,3-dihydro-benzo[e]-[1,4]-diazepin-2-one (III) with diazonium salts (phenyl diazo salt derivatives) were prepared and tested for anticonvulsant activity. The compounds provided significant protection against maximal electroshock ...
‘THE RECENT DEVELOPMENT of a new colorimetric procedure (TransAc*), for the determination of serum glutamic oxalacetic transaminase utilizing the diazonium salt, 6-benzamido-4-methoxy-m-toluidine diazonium chloride, as the color developer with a specificity for oxalacetic acid, prompted the following experiments. Determination of glutamic oxalacetic transaminase activities were performed accord...
nanosilica periodic acid (nano-spia) is found to be a new, powerful, and reusable heterogeneous catalyst for the rapid synthesis of 2-naphtholazo dyes via diazotization of aromatic amines and followsazo coupling with 2-naphthol under solvent-free conditions at room temperature by grinding. eco-friendly, heterogeneous reaction conditions, high stability of diazonium salt, simple experimental pro...
Hydroxytriazenes behave like bidentate ligands which have alpha hydroxyl group relative to azo group. The synthesis includes reduction of an alkyl or aryl nitro compound in neutral medium to get hydroxylamine and diazotization of an aromatic amine to get diazonium chloride. When these two that is hydroxylamine and respective diazonium salt are coupled we get hydroxytriazene as a product. A gene...
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