Maleate–fumarate conversion and other novel aspects of the reaction of a Co(ii) maleate with pyridine and bipyridine
作者:M. Padmanabhan、James C. Joseph、A. Thirumurugan、C. N. R. Rao
DOI:10.1039/b718623a
日期:——
Reaction of a molecular Co(II) maleate, [Co(Hmal)2(H2O)4], with pyridine yields a Co(II) fumarate, [Co(fum)(H2O)4], with a chain structure and a chiral pyridylsuccinic acid zwitter ion, âOOCâCH(N+C5H5)âCH2âCOOH, in almost quantitative yields, while the reaction of 4,4â²-bipyridine (bipy) with the Co(II) maleate, on the other hand, almost quantitatively generates a polylmeric Co(II) maleate, [Co(mal)(bipy)]n·(n/2)H2O along with the adduct of fumaric acid with bipyridine.
分子马来酸 Co(II) [Co(Hmal)2(H2O)4] 与吡啶反应生成富马酸 Co(II) [Co(fum)(H2O)4],具有链结构和手性吡啶基琥珀酸两性离子,-OOC-CH(N+C5H5)-CH2-COOH,产率几乎定量,而 4,4-联吡啶 (bipy) 与 Co(II) 的反应另一方面,马来酸几乎定量地生成聚合马来酸Co(II),[Co(mal)(bipy)]n·(n/2)H2O以及富马酸与联吡啶的加合物。