Diaryl-substituted maleic anhydrides

…, S Meyerson, ML Winzenburg, BR Ortega…

文献索引：Fields, E. K.; Behrend, S. J.; Meyerson, S.; Winzenburg, M. L.; Ortega, B. R.; Hall, H. K. Journal of Organic Chemistry, 1990 , vol. 55, # 17 p. 5165 - 5170

全文：HTML全文

被引用次数: 44

摘要

Summary The intramolecularly H-bonded cis enolic form of malondialdehyde in chloroform is converted to an intermolecularly H-bonded trans enol by methoxy compounds such as methanol and 3, 3-dimethoxypropanal." Polar impurities" such as acetone and dioxane do not induce this effect. In aqueous solution sodio-1 predominates at pH> 6. Based upon'H NMR coupling constants, both 1 and sodio-1 have the trans configuration in aqueous ...