We report a facile and high-yielding procedure for preparing biphenyltetracarboxylic dianhydrides (BPDAs). This method relies on a nickel-catalyzed electroreductive coupling reaction of dimethyl 3-chorophthalate (3-DMCP) and/or dimethyl 4-chorophthalate (4-DMCP) with subsequent hydrolysis of tetra-ester and dehydration of tetra-acid.
机构:
Pacific Corp, Pharmaceut & Hlth Sci Res Inst, Kyounggi Do 449900, South KoreaPacific Corp, Pharmaceut & Hlth Sci Res Inst, Kyounggi Do 449900, South Korea
Joo, YH
Kim, JK
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机构:
Pacific Corp, Pharmaceut & Hlth Sci Res Inst, Kyounggi Do 449900, South KoreaPacific Corp, Pharmaceut & Hlth Sci Res Inst, Kyounggi Do 449900, South Korea