52577-04-5Relevant articles and documents
Electroluminescence from a new distyrylbenzene based triazine dendrimer
Lupton, John M.,Hemingway, Leon R.,Samuel, Ifor D.W.,Burn, Paul L.
, p. 867 - 871 (2007/10/03)
We have synthesised a new distyrylbenzene cored dendrimer which utilises triazine rings to link the surface groups. It was found that methoxy surface groups were sufficient to give the dendrimer good solubility and good quality thin films could be prepared by spin-coating from solution. The dendrimer was luminescent both in solution and the solid state with the emission occurring from the core. The photoluminescence quantum yield was determined to be 31±3% in the solid state. The dendrimer was incorporated into a single layer light-emitting diode (ITO/dendrimer/Ca) and was found to emit blue light with an external quantum efficiency of 0.003%.
Phosphonic acid derivatives useful as anti-inflammatory agents
-
, (2008/06/13)
Novel acids, esters, and salts of phenyl, naphthyl, quinoxalinyl, and biphenyl bisphosphonic acids and 1,2-oxaphosphepins are described. These compounds are useful as antiinflammatory and anti-arthritic agents. Also described are known compounds of the phenyl, naphthyl, quinoxalinyl, and biphenyl bisphosphonate classes which are also useful as antiinflammatory and anti-arthritic agents. Representative compounds include [1,2-phenyldiyl]bis (methylene)bisphosphonic acid tetramethyl ester, [2,3-quinoxalindiyl]bis(methylene)bisphosphonic acid tetramethyl ester, [[3-(propyl)-4-(methoxy)-1,8-naphthalenediyl]bis(methylene)]bisphosphonic acid tetramethyl ester, [2,6-naphthalenediylbis(methylene) bisphosphonic acid tetraethyl ester, and [2,2'-biphenylenebis(methyl)]bisphosphonic acid tetramethyl ester. Representative oxaphosphepins include the preferred 3,4-dihydro-3-methoxy -7-(phenylmethoxy)-1H-naphth[1,8de][1,2]oxaphosphepin-3-oxide.
Phosphonic acid derivatives useful as anti-inflammatory agents
-
, (2008/06/13)
Novel 1,2-oxaphosphepins are useful as antiinflammatory and antiarthritic agents. A representative oxaphosphepin is 3,4-dihydro-3-methoxy-7-(phenylmethoxy)-1H-naphth[1,8de][1,2]oxaphosphepin-3-oxide.
(o-Hydroxyphenyl)methylphosphonic acids: Synthesis and Potentiometric Determinations of their pKa Values
Boehmer, Volker,Vogt, Walter,Chafaa, Salah,Meullemeestre, Jean,Schwing, Marie-Jose,Vierling, Francois
, p. 139 - 149 (2007/10/02)
(o-Hydroxyphenyl)methylphosphonic acids are readily obtained from o-(bromomethyl)- or o-(hydroxymethyl)phenols and trialkyl phosphites.Subsequent hydrolysis leads to the corresponding phosphonic acids.For a series of such compounds, the pKa val