- HYDROXYPHENYL PHENANTHROLINES AS POLYMERIZABLE BLOCKERS OF HIGH ENERGY LIGHT
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Described are high energy light blocking compounds and ophthalmic devices containing the compounds. In particular, described are hydroxyphenyl phenanthroline structures with polymerizable functionality that block high energy light and are visibly transpar
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Paragraph 0288; 0294
(2019/01/15)
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- A highly practical and convenient halogenation of fused heterocyclic N-oxides
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A novel, simple and practical method for the regioselective halogenation of fused heterocyclic N-oxides has been developed. It employs Vilsmeier reagent, generated in situ by POX3and DMF, as both the activating agent and the nucleophilic halide source. The method is amenable across a broad range of substrates, including quinolines, isoquinolines and the diazine N-oxides, possessing a variety of substitution patterns. Furthermore, all of the reagents associated are cheap and easy to obtain. The potential extension of this method to a one-pot oxidation/halogenation sequence that obviates the need for isolation of the N-oxide intermediates is also presented.
- Wang, Dong,Wang, Yuxi,Zhao, Junjie,Li, Linna,Miao, Longfei,Wang, Dong,Sun, Hua,Yu, Peng
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p. 5762 - 5768
(2016/08/30)
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- Regioselective bromination of fused heterocyclic N-oxides
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A mild method for the regioselective C2-bromination of fused azine N-oxides is presented, employing tosic anhydride as the activator and tetra-n-butylammonium bromide as the nucleophilic bromide source. The C2-brominated compounds are produced in moderate to excellent yields and with excellent regioselectivity in most cases. The potential extension of this method to other halogens, effecting C2-chlorination with Ts2O/TBACl is also presented. Finally, this method could be incorporated into a viable one-pot oxidation/bromination process, using methyltrioxorhenium/urea hydropgen peroxide as the oxidant.
- Wengryniuk, Sarah E.,Weickgenannt, Andreas,Reiher, Christopher,Strotman, Neil A.,Chen, Ke,Eastgate, Martin D.,Baran, Phil S.
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supporting information
p. 792 - 795
(2013/04/10)
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- RARE EARTH METAL COMPLEX HAVING PHENANTHROLINE COMPOUND AS LIGAND
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The present invention provides a rare earth metal complex represented by the following formula (I).
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Page/Page column 35-36
(2012/10/07)
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- Synthesis of new pyrrole-pyridine-based ligands using an in situ Suzuki coupling method
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The compounds 6-(pyrrol-2-yl)-2,2'-bipyridine, 2-(pyrrol-2-yl)-1,10- phenanthroline and 2-(2-(N-methylbenz[d,e]imidazole)-6- (pyrrol-2-yl)-pyridine were synthesized by using an in situ generated boronic acid for the Suzuki coupling. Crystals of the products could be grown and exhibited interesting structures by X-ray analysis, one of them showing a chain-like network with the adjacent molecules linked to each other via intermolecular N-H...N hydrogen bonds.
- Boettger, Matthias,Wiegmann, Bjoern,Schaumburg, Steffen,Jones, Peter G.,Kowalsky, Wolfgang,Johannes, Hans-Hermann
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supporting information; experimental part
p. 1037 - 1047
(2012/08/28)
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- PHENANTHROLINE DERIVATIVES AND THEIR USE AS LIGANDS
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The present invention provides a novel compound having a phenanthroline structure represented by the following formula (I) or a salt thereof useful as a ligand of an analytical marker using fluorescence.
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Page/Page column 25
(2011/04/18)
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- PHENANTHROLINE-COMPRISING COMPLEXES
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Phenanthroline-comprising complexes and catalyst systems obtained therefrom, and also their use in the polymerization of olefins.
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