Electrochemical selective trimerization of malonic esters into esters of propane-1,1,2,2,3,3-hexacarboxylic acid in the presence of hydrobromic acid salts
Electrochemical cyclization of tetramethyl esters of 2-substituted propane-1,1,3,3-tetracarboxylic acids in the presence of salts of hydrohalic acids
作者:M. N. Elinson、S. K. Fedukovich、G. I. Nikishin
DOI:10.1007/bf01184531
日期:1990.12
The chemical and electrochemical cyclization of tetramethyl esters of 2-substituted propane-1,1,3,3-tetracarboxylic acids in the presence of hydrohalic acid salt mediators were studied. It was found that the chemical variant of the cyclization of the corresponding alpha,alpha'-dianions of esters of propane-1,1,3,3-tetracarboxylic acids by the action of iodine or bromine is substantially inferior to the electrochemical variant. In the latter case, the esters of substituted cyclopropane-1,1,2,2-tetracarboxylic acids are formed in a 87-98% yield. The tetramethyl ester of 2-isopropylpropane-1,1,3,3-tetracarboxylic acid, which under the electrolysis conditions decomposes according to a Michael retroreaction is an exception.
Electrochemical co-oxidation of C-H acids and methanol as a new route to functionalized cyclopropanes
作者:S. K. Fedukovich、M. N. Elinson、G. I. Nikishin
DOI:10.1007/bf00703502
日期:1994.10
Electrolysis of dimethyl malonate or methyl cyanoacetate in methanol in the presence of LiCl in an undivided cell leads to formation of 1,1,2,2-cyclopropanetetracarboxylic derivatives.
Electrochemical oxidation of malonic esters in the presence of catalyst carriers ? salts of hydriodic acid
作者:M. N. �linson、S. K. Fedukovich、G. I. Nikishin
DOI:10.1007/bf00959879
日期:1988.11
Bischoff, Chemische Berichte, 1896, vol. 29, p. 1742
作者:Bischoff
DOI:——
日期:——
Electrochemical cyclization of esters of propane-1,1,3,3-tetracarboxylic acids to give esters of substituted cyclopropane-1,1,2,2-tetracarboxylic acids