Enamine-functionalized oligopyridines as convenient intermediates for the synthesis of carbaldehyde derivatives
A series of enamine-substituted bipyridine, biquinoline and o-phenanthroline chromophores has been synthesized and fully characterized. The para regioselectivity of the functionalization is discussed on the basis of 2D NOESY correlation and X-ray diffraction analysis. Absorption and emission spectroscopic studies allow a comparison of the acceptor strength of the heterocyclic core (biquinoline > phenanthroline > bipyridine). These enamine derivatives are key intermediates for a straightforward preparation of the corresponding dicarbaldehyde-bisimine compounds.
PHENANTHROLINE DERIVATIVE AND LIGHT EMITTING ELEMENT AND LIGHT EMITTING DEVICE USING THE SAME
It is an object of the present invention to provide a novel material that can be used for an electron injecting material. In addition, it is an object of the present invention to provide a light-emitting element that is able to broaden choices for an electrode material. An aspect of the present invention is an electron injecting material represented by a general formula (2). In the general formula (2), R6 is selected from the group consisting of an alkyl group having 1 to 4 carbon atoms, an alkenyl group having 1 to 4 carbon atoms, and an aryl group having 6 to 10 carbon atoms, where the alkenyl group and the aryl group may have a substituent.
-
Page/Page column 28-29
(2008/06/13)
More Articles about upstream products of 5298-71-5