Organic compounds -- part of the class 532-570 series – Organic compounds – Nitrogen attached directly or indirectly to the purine ring...
Patent
1992-05-29
1995-05-16
Bernhardt, Emily
Organic compounds -- part of the class 532-570 series
Organic compounds
Nitrogen attached directly or indirectly to the purine ring...
544336, 544410, 428690, C07D24112, C07D40106, C07D40506, C07D40906
Patent
active
054162130
ABSTRACT:
Herein disclosed are a tetravinylpyrazine compound which has high light-emitting efficiency and thermal stability and which is represented by the following general formula (1): ##STR1## wherein R represents an aromatic ring or a heterocyclic ring; X represents a hydrogen atom, an aliphatic hydrocarbon group, an alicyclic hydrocarbon group, an aromatic hydrocarbon group, a halogen atom, a hydroxyl group, an alkoxy group, a carboxyl group, an alkoxycarbonyl group, an acylamino group, a dialkylamino group, a nitro group, an acyloxy group or an acyloxycarbonyl group; a method for preparing the tetravinylpyrazine; and electroluminescent elements and non-linear optical materials using the pyrazine compound.
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Hasegawa Masaki
Nohara Masao
Ohashi Yutaka
Bernhardt Emily
Mitsui Toatsu Chemicals Inc.
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