Ruthenium-Catalyzed Transfer Hydrogenation of Amino- and Amido-Substituted Acetophenones
作者:Andrew J. A. Watson、Antony J. Fairbanks
DOI:10.1002/ejoc.201301020
日期:2013.10
The ruthenium-catalyzedtransferhydrogenation of electron-rich amino-substituted acetophenones is reported. Variation of the reductant, ligands, base, and solvent allowed reaction optimization. A key discovery was the use of 1,4-butanediol as an irreversible reducing agent, which significantly improved the conversion. A range of amino- and amido-substituted aryl ketones were explored, and they all
Photo- and PH-switchable fluorescent diarylethenes based on 2,3-diarylcyclopent-2-en-1-ones with dialkylamino groups
作者:Valerii Z. Shirinian、Dmitry V. Lonshakov、Andrey G. Lvov、Alexey M. Kavun、Anton V. Yadykov、Mikhail M. Krayushkin
DOI:10.1016/j.dyepig.2015.09.027
日期:2016.1
groups-comprising diarylethenes of 2,3-diarylcyclopent-2-en-1-one (DCP) series have been synthesized and its photochromic, fluorescent as well as acidochromic features have been investigated. It was shown that photochromic properties of the substances depend strong on their structures; the non-symmetry of the photochromic molecule is a powerful tool to properly control and tune the parameters of diarylethenes. It
Ring Size Effects on Multi‐Stimuli Responsive Luminescent Properties of Cyclic Amine Substituted β‐Diketones and Difluoroboron Complexes
作者:Fang Wang、Daniel Song、Diane A. Dickie、Cassandra L. Fraser
DOI:10.1002/asia.201801576
日期:2019.5.15
Emissive β‐diketones (bdks) and difluoroboron complexes (BF2bdks) show multi‐stimuliresponsive luminescence in both solution and the solid state. A series of bdk ligands and boron coordinated dyes were synthesized with different cyclic amine substituents in the 4‐position to explore ring size effects on various luminescent properties, including solvatochromism, viscochromism, aggregation‐induced emission
Photoinduced Carbon−Heteroatom Cross‐Coupling Catalyzed by Nickel Naphthyridine Complexes
作者:Janet Bahri、Shubham Deolka、Pavan K. Vardhanapu、Eugene Khaskin、Ramadoss Govindarajan、Robert R. Fayzullin、Serhii Vasylevskyi、Julia R. Khusnutdinova
DOI:10.1002/cctc.202301142
日期:2023.12.19
and C‒O cross-coupling reactions catalyzed by NiII complexes supported by 2,7-dimethyl-1,8-naphthyridine ligand. Using the same Ni catalyst and visible light irradiation, both C‒O and C‒N coupling reactivity was observed without additional photocatalysts. These results demonstrate that Ni naphthyridine complexes represent a versatile catalytic motif for photoredox nickel catalysis alternative to commonly