22426-14-8Relevant articles and documents
HYDROXYPHENYL PHENANTHROLINES AS POLYMERIZABLE BLOCKERS OF HIGH ENERGY LIGHT
-
Paragraph 0288; 0294, (2019/01/15)
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
Regioselective bromination of fused heterocyclic N-oxides
Wengryniuk, Sarah E.,Weickgenannt, Andreas,Reiher, Christopher,Strotman, Neil A.,Chen, Ke,Eastgate, Martin D.,Baran, Phil S.
supporting information, p. 792 - 795 (2013/04/10)
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.
Synthesis of new pyrrole-pyridine-based ligands using an in situ Suzuki coupling method
Boettger, Matthias,Wiegmann, Bjoern,Schaumburg, Steffen,Jones, Peter G.,Kowalsky, Wolfgang,Johannes, Hans-Hermann
supporting information; experimental part, p. 1037 - 1047 (2012/08/28)
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.