32707-86-1Relevant academic research and scientific papers
Simplification of the synthesis of tetramethyldipicrylamine
Fritsch,Moore,Meyer
, p. 350 - 350 (1968)
BECAUSE the antibacterial agent, tetramethyldipicrylamine, which we reported recently1 has aroused wide interest we have developed a modification in the synthesis of the intermediate, 3,3′,5,5′-tetramethyldiphenylamine, which will make it possible for research workers to prepare experimental quantities of pure material in good yield without the necessity of elaborate equipment. The methods reported previously involved heating 3,5-dimethylaniline and its hydrochloride in either a glass2 or metal3 autoclave at 235°-250°C or heating a mixture of 3,5-dimethylaniline and 3,5-dimethylphenol at 300°-400°C under 50 to 300 atmospheres pressure4.
ORGANIC COMPOUND AND LIGHT EMITTING DIODE AND ORGANIC LIGHT EMITTING DIODE DISPLAY DEVICE USING THE SAME
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Paragraph 0270-0273, (2018/01/02)
The present invention relates to an organic compound, and a light emitting diode and an organic light emitting diode display device where the organic compound is applied to at least one organic compound layer. In the organic compound, a conjugated benzene ring forming a fused ring derivative core, another aromatic ring bonded to the benzene ring, and/or an electron attracting group (electron withdrawing group, electron acceptor) stronger to an aromatic moiety directly or indirectly connected to the benzene ring, is substituted to offer excellent hole injection characteristics and charge generation characteristics.COPYRIGHT KIPO 2017
Palladium-catalyzed coupling of ammonia with aryl chlorides, bromides, iodides, and sulfonates: A general method for the preparation of primary arylamines
Vo, Giang D.,Hartwig, John F.
supporting information; experimental part, p. 11049 - 11061 (2009/12/05)
We report that the complex generated from Pd[P(o-tol)3] 2 and the alkylbisphosphine CyPF-t-Bu is a highly active and selective catalyst for the coupling of ammonia with aryl chlorides, bromides, iodides, and sulfonates. The couplings of ammonia with this catalyst conducted with a solution of ammonia in dioxane form primary arylamines from a variety of aryl electrophiles in high yields. Catalyst loadings as low as 0.1 mol % were sufficient for reactions of many aryl chlorides and bromides. In the presence of this catalyst, aryl sulfonates also coupled with ammonia for the first time in high yields. A comparison of reactions in the presence of this catalyst versus those in the presence of existing copper and palladium systems revealed a complementary, if not broader, substrate scope. The utility of this method to generate amides, imides, and carbamates is illustrated by a one-pot synthesis of a small library of these carbonyl compounds from aryl bromides and chlorides, ammonia, and acid chlorides or anhydrides. Mechanistic studies show that reactions conducted with the combination of Pd[P(o-tol)3]2 and CyPF-t-Bu as catalyst occur with faster rates and higher yields than those conducted with CyPF-t-Bu and palladiun(II) as catalyst precursors because of the low concentration of active catalyst that is generated from the combination of palladium(II), ammonia, and base.
Synthesis, Structure, and Reductive Elimination Chemistry of Three-Coordinate Arylpalladium Amido Complexes
Yamashita, Makoto,Hartwig, John F.
, p. 5344 - 5345 (2007/10/03)
Four three-coordinate arylpalladium amido complexes with a single hindered phosphine were isolated and structurally characterized. Each possessed a T-shaped geometry. Several of these complexes possessed true three-coordinate structures that lacked any additional coordination by ligand C-H bonds. All of the three-coordinate complexes underwent reductive elimination to form the corresponding triarylamine. A comparison of the rate of reaction of the three-coordinate compounds demonstrated that the rate of elimination from the pentaphenylferrocenyl di-tert-butylphosphine complex were the fastest. A comparison of the rates of reactions between three-coordinate and four-coordinate complexes showed that the rates were much faster from the three-coordinate complexes. Copyright
