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发明人张德明,马晓峰,沈红梅. "Method for the Synthesis of 5-(Difluoromethyl)-1-methyl-1,2-dihydro-3H-pyrazol-3-one" [P]. 中国发明专利, 专利号 CN 113732699 B, 授权公告日 2017-11-16.
发明人林芳,钱学锋,唐晓军. "A Process for Preparing High-Purity 5-(Difluoromethyl)-1-methyl-1,2-dihydro-3H-pyrazol-3-one" [P]. 中国发明专利, 专利号 CN 112123512 B, 授权公告日 2020-01-03.
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