发明人钱学锋,马晓峰,罗永刚. "Method for the Synthesis of 2,4-Difluoro-9H-carbazole" [P]. 中国发明专利, 专利号 CN 108100613 A, 授权公告日 2022-01-24.
发明人赵玉洁,张德明,郑宇鹏. "A Process for Preparing High-Purity 2,4-Difluoro-9H-carbazole" [P]. 中国发明专利, 专利号 CN 109270758 A, 授权公告日 2024-04-16.
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