Organic boron compound, process for producing the compound and organic luminescence device using the compound
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United States of America Patent
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Oct 8, 2002
Grant Date -
Jan 24, 2002
app pub date -
Mar 28, 2001
filing date -
Mar 31, 2000
priority date (Note) -
Expired
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Abstract
An organic boron compound effective for constituting a functional layer in an organic luminescence device is represented by formula (1) below: ##STR1## wherein Ar.sub.1 denotes an optionally substituted aryl group or heterocyclic group; R.sub.1 -R.sub.11 independently denote hydrogen, halogen, alkyl, alkenyl, amino, alkoxy, formyl, nitrile, aroyl, alkyloyl, aryl, aralkyl or heterocyclic group, each optionally substituted with the proviso that an adjacent one or more pairs of R.sub.1 -R.sub.11 can form a condensed ring. The organic boron compound can be produced through a process including (A) a step of reacting an aromatic ketone compound X with an aromatic ketone compound or an aromatic aldehyde compound in the presence of ammonium chloride, and (B) a step of reacting a product of the step (A) with an aromatic boric acid compound.
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