发明人李文辉,何建平,孙丽萍. "Method for the Synthesis of 2-(3,4-Dichlorophenyl)-2,2-difluoroacetic acid" [P]. 中国发明专利, 专利号 CN 109780909 B, 授权公告日 2018-03-12.
发明人孙丽萍,陈志强,郭海燕. "A Process for Preparing High-Purity 2-(3,4-Dichlorophenyl)-2,2-difluoroacetic acid" [P]. 中国发明专利, 专利号 CN 116340276 B, 授权公告日 2015-06-19.
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