178805-22-6Relevant academic research and scientific papers
Highly stereoselective synthesis of vinyl and ethynylcyclopropane 1,1-dicarboxylic esters via semi-stabilized telluronium ylides
Tang, Yong,Chi, Zheng-Fa,Huang, Yao-Zeng,Dai, Li-Xin,Yu, Yi-Hua
, p. 8747 - 8754 (1996)
Highly electron-deficient vinyl and ethynylcyclo-propane 1,1-dicarboxylic esters conveniently synthesized by the reaction of allylic diisobutyltelluronium ylides with alkylidene or arylmethylidene malonic esters with high yields and high stereoselectivity. The effects of the reaction media and bases used to produce the ylides on the stereoselectivity are studied.
Highly stereoselective synthesis of trisubstituted vinylcyclopropane derivatives via arsonium ylides
Jiang, Hong,Deng, Xianming,Sun, Xiuli,Tang, Yong,Dai, Li-Xin
, p. 10202 - 10205 (2005)
Alkylidene or arylidene malonates reacted with arsonium allylides to give trans-disubstituted cyclopropane-1,1-dicarboxylates with high stereoselectivity in high yields. The mechanism of the cyclopropanation reactions has also been investigated.
Stereochemistry of the transformations of gem-cyclopropanedicarboxylic acid to carboxybutyrolactones. II. Stereospecificity of the rearrangement of 2,3-diphenyl- and 2-methyl-3-phenyl-1,1-cyclopropanedicarboxylic acids
Mandel'shtam, T. V.,Kolesova, S. V.,Polina, T. V.,Solomentsev, V. V.,Osmolovskaya, N. S.
, p. 1024 - 1031 (2007/10/02)
When heated above melting points, cis- and trans-2,3-diphenyl-1,1-cyclopropanedicarboxylic acids lose carbon dioxide and are converted nonstereospecifically into a mixture of trans-3,4-diphenyl-γ-butyrolactone and trans-2,3-diphenyl-1-cyclopropanecarboxyl
