178805-22-6Relevant articles and documents
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.
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
