期刊
POLYHEDRON
卷 26, 期 15, 页码 4518-4524出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.poly.2007.06.028
关键词
cyclic anhydrides; ring opening reactions; transition metal carboxylates; selectivity in hydrolysis
Ring opening reactions of 2,3-pyridine dicarboxylic anhydride are studied with hydrated salts of cobalt, nickel and zinc. The hydrated metal salts preferentially hydrolyze 2,3-pyridine dicarboxylic, anhydride rather than causing esterification in methanol medium. Hydrolytic opening of 2,3-pyridine dicarboxylic anhydride by hydrated cobalt(II) acetate and nickel(II) acetate resulted in the corresponding chelate complexes of monodeprotonated 2,3-pyridine dicarboxylic acid. The reaction of copper acetate with pyromellitic dianhydride in the presence of 1,10-phenanthroline gives a dinuclear copper complex whereas a similar reaction with copper(II) chloride gives a mononuclear copper complex. (c) 2007 Elsevier Ltd. All rights reserved.
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