| 摘要 |
PROBLEM TO BE SOLVED: To provide a dihalo polycyclic aromatic compound having high yield and mass synthesis suitability, to provide a pyrrolyl polycyclic aromatic compound and to provide a method for producing the same. SOLUTION: The dihalo polycyclic aromatic compound is represented by general formula [2] (wherein, R<SB>1</SB>and R<SB>2</SB>represent each a substituent; n1 and n2 represent each an integer of 0-3; and X represents an oxygen atom, a sulfur atom or an imino group). COPYRIGHT: (C)2009,JPO&INPIT
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