Triphenyl-amine

TEST Aniline 0- toluidine m-> toluidine P-. toluidine I- naphthyl- amine 2- naphthyl- amine mono- methyl- aniline diphenyl- amine dimethyl- aniline triphenyl- amine... 

Toxicology. Triphenyl amine is considered to have low systemic toxicity, but it may act as a slight skin irritant. 

Applied to the skin of guinea pigs for 24 hours, a 10% solution caused only slight erythema at 10-20ml/kg whereas 5ml/kg caused no effect. There was no evidence of systemic toxicity after topical application. Triphenyl amine was not a skin sensitizer, as determined by repeated application of a 0.1M solution to guinea pigs. 

Triphenyl amine was not mutagenic in bacterial assays with or without metabolic activation. ... 

The 2003 ACGIH threshold limit valuetime-weighted average (TLV-TWA) for triphenyl amine is 5mg/mk... 

ACGIH Triphenyl amine. Documentation of the TLVs and BEIs, 6th ed, pp 1658-1659. Cincinnati, OH, American Conference of Governmental Hygienists, 1991... 

The ultra-violet light induces electromagnetic excitation in molecules absorbing the laser energy, and by subsequently applying the principle of absorption spectroscopy, kinetic and spectroscopic information relating to the electronically excited states of various energetic molecules have been derived. The systems studied to-date include s-TNB, s-TNT, triphenyl-amine, and mono- as well as di-nitronaphthalenes (Ref 13, 14, 20, 21 28)... 

One further reaction of biacetyl should be noted. It has been found that phenols and aromatic amines, including triphenyl amine which contains no... 

The nitrogen of aliphatic and aromatic amines is alkylated rapidly by alkyl sulfates yielding the usual mixtures. Most tertiary amines and nitrogen heterocycles are converted to quaternary ammonium salts, unless the nitrogen is of very low basicity, eg, in triphenyl amine. The position of dimethyl sulfate-produced methylation of several heterocycles with more than one heteroatom has been examined (22). Acyl cyanamides can be methylated (23). Metal cyanates are converted to methyl isocyanate or ethyl isocyanate in high yields by heating the mixtures (24,25). 

Triphenyl-amine + anthraquin. - Triplet exciplex decay [29]... 

Oxidative coupling has been observed for benzene (52), methyl substituted benzenes (53), triphenylethylene (54), triphenyl-amines (55-59), anilines (57), carbazoles (60,61), iminobibenzyls (62), and heterocyclic phenols (71,72). Intramolecular anodic coupling reactions are used for synthesizing specific ring structures (63-68). Both dimer and octamer of dibenzothiophene have been detected (69,70)... 

Preparation of aromatic secondary and tertiary amines like diphenyl-and triphenyl-amine is catalyzed by copper powder. ... 

Tail-to-tail coupling of radicals obtained in the anodic oxidation of triphenyl-amines results in the formation of tetraphenylbenzidines. Oxidation of triarylamines to the di-cation results in the formation of the carbazoles, as observed for Ai -alkyl-p,p -disubstituted diphenylamines [1-3, 78]. The cation radicals of triarylamines with substituents in the para position of the aryl groups, which can protect them against nucleophilic attack, are very stable and can be used as organic redox catalysts for indirect electrochemical oxidation reactions. Depending on the substitution pattern on the phenyl group the oxidation potentials of the triarylamines can be tuned over a wide range [Eoy. = 0.7-2.0 V) and many of these have been used as redox catalysts in numerous indirect electrochemical reactions [1-3, 79-83]. 

PEDT PSS/emission-layer/Ba/Al devices with the red dye pic2Ir(acac) blended into either a PVK PBD(40 wt. %), a PFO PBD (30 wt. %) or a PFTA PBD (30 wt. %) host (where PFTA is a hyperbranched polyfluorene with a triphenyl-amine core). Even though the maximum efficiencies of all devices were quite comparable (10%), the voltage to drive the PFTA PBD device at ca. 1300 cd/m2 was only 10.1 V, compared to 13.9 V for the PVK PBD device. 

Here, we report on the use of trisamides as electret additives in i-PP. A general structure of these compounds is shown in Fig. 15. The molecules have a C3-symmetry and consist of a central core, three units capable of forming hydrogen bonds, and nonpolar peripheral substituents. The central core can be a triphenyl-amine, benzene, or cyclohexyl unit. The hydrogen bonds are in most cases formed via amide groups and the peripheral substituents consist of alicyclic or aliphatic linear or branched hydrocarbons. The direction of the linkage between the core and the one, two, or all three substituents can be inverted so that either the carbonyl or the amine groups are attached to the core. 

TRIPHENYL AMINE (603-34-9) Incompatible with aldehydes, ketones, nitrates, acids, organic anhydrides, isocyanates, aldehydes, nitrocompounds, oxidizers, oxygen, and peroxides. 

Acidify sample with citric acid adjust to pH 9.5 with NaOH extract with diethyl ether wash with sodium bicarbonate dry with anhydrous sodium sulfate evaporate and redissolve in acetone evaporate fractionate using TLC remove region of silica gel containing MBOCA and extract with acetone evaporate derivatize with TFA evaporate and reconstitute in triphenyl-amine in carbon disulfide... 

Fig. 2.12 Doping of an inert polymer, bisphenol A polycarbonate, with triphenyl-amine (TPA). Temperature dependence of the hole mobility. Plot of log // vs. 1/T for various TPA contents denoted as weight...

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