described. The preparation of dibutylchlorotin methyl maleate and dibutyltin bis(methyl maleate) and reaction of these compounds with 2,2′-bipyridyl are discussed. Treatment of dibutyltin oxide with maleicacid gives a mixture from which three forms of dibutyltin maleate have been isolated. The structures of all these compounds are discussed with reference to their infrared spectra.
Metal ion promoted hydration of pendant alkenes and its possible relationship to aconitase
作者:Lawrence R. Gahan、Jack M. Harrowfield、Anthony J. Herlt、Leonard F. Lindoy、Peter O. Whimp、Alan W. Sargeson
DOI:10.1021/ja00308a015
日期:1985.10
On etudie l'hydratation des carboxyalcenes coordines en utilisant les complexes de bis-ethylenediamine-Co(III) avec le maleate de methyle ou le fumarate de methyle coordines cis a une molecule d'eau. Ces reactions sont des modeles de l'hydratation de l'acide cis-aconitique par l'aconitase
On etudie l'hydratation descarboxyalcenes coordines en utilisant les complexes de bis-乙二胺-Co(III) avec lemaleate demethyle ou le le fumarate demethyle coordines cis a une Molecular d'eau。Ces反应sont des modeles de l'hydratation de l'acide cis-aconitique par l'aconitase
Novel ester derivatives of ether polycarboxylic acids and process for
申请人:Lever Brothers Company
公开号:US04058554A1
公开(公告)日:1977-11-15
Novel polyfunctional compounds which may be hydrolyzed to the corresponding salts, which in turn are metal sequestering agents, are disclosed, as well as a novel method for their preparation. The compounds are the reaction product obtained from the reaction of selected salts of monoalkyl esters of maleic acid with selected active hydrogen containing compounds. These products are prepared by a reaction of the starting materials in preferably a substantially anhydrous medium at an elevated temperature.
Novel polyfunctional compounds which may be hydrolyzed to the corresponding salts, which in turn are metal sequestering agents, are disclosed, as well as a novel method for their preparation. The compounds are the reaction product obtained from the reaction of selected salts of monoalkyl esters of maleic acid with selected active hydrogen containing compounds. These products are prepared by a reaction of the starting materials in preferably a substantially anhydrous medium at an elevated temperature.
Ester derivatives of 1-halo-1,1,2,3-propane tetracarboxylic acid
申请人:Lever Brothers Company
公开号:US04159388A1
公开(公告)日:1979-06-26
Novel polyfunctional compounds and a novel process for their preparation are disclosed. These compounds may be converted into the acid or salt forms of cis and trans aconitic acids as well as into a racemic mixture of isocitric acid, alloisocitric acid and the lactones of isocitric acid and alloisocitric acid and their salts. All of the acid and salt forms produced are useful as metal sequestrants and/or detergent builders. The novel polyfunctional compounds can also be saponified to their corresponding alkali metal salts which, in turn, are also metal ion sequestering agents and detergent builders. The polyfunctional compounds are the reaction products obtained from the reaction of selected salts of monoalkyl esters of maleic acid with selected active hydrogen containing compounds.