发明人郭海燕,孙丽萍,林芳. "Method for the Synthesis of 4,5-Difluorophthalic Anhydride" [P]. 中国发明专利, 专利号 CN 112429188 A, 授权公告日 2017-01-02.
Fischer A B, Lee S K, Schröder R. "A Process for Preparing High-Purity 4,5-Difluorophthalic Anhydride" [P]. US Patent, US 9223995 B2, 2023-09-02.
参考文献 Literature
Jensen P, Larsen A M, Olsen K. "Development and Validation of an LC-MS/MS Method for the Determination of 4,5-二氟邻苯二甲酸酐 in Pharmaceutical Formulations". Food Chem., 2013, 1441, (1), 3333-3346.
Jensen P, Larsen A M, Olsen K. "A Stability-Indicating HPLC Method for the Separation and Quantification of 4,5-二氟邻苯二甲酸酐 as an Impurity". Anal. Methods, 2024, 344, (5), 8696-8724.
Lee J H, Choi Y S. "Identification and Structural Characterization of a Novel Degradation Product of 4,5-Difluorophthalic Anhydride Using HRMS and NMR". Anal. Chem., 2022, 1673, 1478-1485.