617-00-5Relevant articles and documents
Highly efficient chrysene emitters based on optimized side groups for deep blue emission
Kang, Seokwoo,Lee, Hayoon,Jung, Hyocheol,Jo, Minjin,Jung, Mina,Park, Jongwook
, p. 299 - 306 (2018)
Diphenylamine substituted with methyl groups was used as a side group to realize high efficiency chrysene deep blue emitters. Three chrysene derivatives substituted with side groups were successfully synthesized: tetra-o-tolylchrysene-6,12-diamine (o-DPAC
Synthesis of N-heterocyclic carbene-Pd(II)-5-phenyloxazole complexes and initial studies of their catalytic activity toward the Buchwald-Hartwig amination of aryl chlorides
Zhang, Zhi-Mao,Xu, Yu-Ting,Shao, Li-Xiong
, (2021/04/19)
Three new N-heterocyclic carbene (NHC)-Pd(II) complexes using 5-phenyloxazole as the ancillary ligand have been obtained in moderate to good yields by a one-pot reaction of the corresponding imidazolium salts, palladium chloride and 5-phenyloxazole under mild conditions. Initial studies showed that one of the complexes is an efficient catalyst for the Buchwald-Hartwig amination of aryl chlorides with various secondary and primary amines under the varied catalyst loading of 0.01-0.05 mol%, thus it will enrich the chemistry of NHCs and give an alternative catalyst for the coupling of challenging while cost-low aryl chlorides.
One-pot synthesis of symmetrical and asymmetrical diphenylamines from guanidines with aryl iodide using Cu/Cu2O nanocatalyst
Chaurasia, Shivkumar R.,Bhanage
, (2020/06/01)
This work reports the selective one-pot synthesis of symmetrical and asymmetrical amines from guanidines as ammonia surrogate. The use of guanidine as ammonia source will eliminate the need of handling liquid ammonia. The reaction was performed using Cu/Cu2O nanocatalyst under ligand-free condition. The synthesized catalyst was characterized by a various technique like XRD, FEG-SEM, HRTEM and XPS. The different diphenylamines are produced in good to very good yields. Recyclability study of catalyst shows that up to five cycles there is no significant loss in its activity.
A green and mild procedure to selective synthesis of diarylamine via domino reaction of aryl halides and arginine catalyzed by magnetic-MOF
Soleiman-Beigi, Mohammad,Mohammadi, Fariba
, (2019/01/03)
Efficient and selective direct synthesis of diarylamines from aryl halides and arginine as a nitrogen-donor reagent is reported. Arginine, which is an oral supplement, acts as a useful nitrogen source donor in the copper-catalyzed reaction. Fe3O4/Cu3(BTC)2, which was easily separated and recycled with a magnet, improved the rate and facilitation of the synthesis of diarylamines selectively. The introduction of a new and available N-source, simple magnetic separation process, normal atmospheric conditions, and excellent yields under mild reaction conditions are other important features of this work.
