[EN] ORGANIC LIGHT EMITTING POLYAROMATIC AND POLYHETEROAROMATIC HOST MATERIALS [FR] MATIÈRES HÔTES POLYAROMATIQUES ET POLYHÉTÉROAROMATIQUES ÉMETTANT DE LA LUMIÈRE ORGANIQUE
[EN] ORGANIC LIGHT EMITTING POLYAROMATIC AND POLYHETEROAROMATIC HOST MATERIALS [FR] MATIÈRES HÔTES POLYAROMATIQUES ET POLYHÉTÉROAROMATIQUES ÉMETTANT DE LA LUMIÈRE ORGANIQUE
Solvent-Free Buchwald-Hartwig (Hetero)arylation of Anilines, Diarylamines, and Dialkylamines Mediated by Expanded-Ring N-Heterocyclic Carbene Palladium Complexes
作者:Maxim A. Topchiy、Pavel B. Dzhevakov、Margarita S. Rubina、Oleg S. Morozov、Andrey F. Asachenko、Mikhail S. Nechaev
DOI:10.1002/ejoc.201501616
日期:2016.4
the Buchwald–Hartwig (hetero)arylation of anilines, diarylamines, and dialkylamines mediated by the expanded-ring N-heterocyclic carbene palladium complex (THP-Dipp)Pd(cinn)Cl [THP-Dipp = 1,3-bis(2,6-diisopropylphenyl)-3,4,5,6-tetrahydropyrimidin-2-ylidene; cinn = cinnamyl, 3-phenylallyl] was developed. The catalytic protocol was efficient for the coupling of amines and (hetero)aryl chlorides and bromides
Bis(ortho-substituted aryl)amines were arylated on the nitrogen atom with various haloarenes in high yields using the palladium catalyst, which was generated from palladium(II) acetate and tri(tert-butyl)phosphine.
Phase-Transfer Catalysis in the Ullmann Synthesis of Substituted Triphenylamines
作者:Sylvie Gauthier、Jean M. J. Fréchet
DOI:10.1055/s-1987-27953
日期:——
A variety of substituted triphenylamine derivatives were prepared in nearly quantitative yields by the use of 18-crown-6 as a phase transfer catalyst under the Ullmann reaction conditions.
Novel CuI/tributyl phosphine catalyst system for amination of aryl chloridesElectronic supplementary information (ESI) available: experimental and analytical details (G.C. and NMR analysis). See http://www.rsc.org/suppdata/cc/b3/b308034j/
作者:Nandkumar M. Patil、Ashutosh A. Kelkar、Zahid Nabi、Raghunath V. Chaudhari
DOI:10.1039/b308034j
日期:——
A simple and efficient methodology for the synthesis of triarylamines from aryl chlorides in a single step has been demonstrated using a novel CuI/tributyl phosphinecatalyst system with high activity and selectivity (80-87% yield).
The Rate Constant of Dimer Cation Formation of Triphenylamine and Substituent Effects
作者:Takashi Sumiyoshi
DOI:10.1246/cl.1995.645
日期:1995.8
indicated that the dimer cation formation is the main process and coupling at the para sites is predominant. The spectrum of transient dimer cations with λmax at 400 and 850 nm, and the dimerization rate constant of k = 1.3 × 108 dm3 mol−1 s−1 were obtained.