发明公开
EP2644607A1 OXYGENATED FUSED RING DERIVATIVE AND ORGANIC ELECTROLUMINESCENCE ELEMENT CONTAINING THE SAME 审中-公开
香港特别行政区组织机构组织机构

OXYGENATED FUSED RING DERIVATIVE AND ORGANIC ELECTROLUMINESCENCE ELEMENT CONTAINING THE SAME
摘要:
An oxygen-containing fused ring derivative represented by the following formula (1) wherein Ar 1 is an m-valent fused ring group in which four or more rings including one or more rings selected from a furan ring and a pyran ring are fused and HAr is any of the nitrogen-containing heterocyclic group represented by the following formulas (2) to (5):
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