20098-66-2Relevant articles and documents
Cyclopropane formation by nickel-catalysed electroreductive coupling of activated olefins and unactivated gem-dibromo compounds
Sengmany, Stéphane,Léonel, Eric,Paugam, Jean Paul,Nédélec, Jean-Yves
, p. 271 - 277 (2007/10/03)
Cyclopropyl derivatives have been prepared with good yields by transition-metal catalysed electroreductive coupling of activated olefins and unactivated gem-dibromo compounds. This electrolysis is characterized by the use of a Fe/Ni catalyst system, acetonitrile as the solvent and a catalytic amount of triphenylphosphine as ligand. This procedure is a good alternative to the classical preparations of cyclopropyl derivatives from activated olefins (Simmons-Smith reaction, 1,3-dipolar addition of diazomethane, 1,4-addition of phosphorus and sulfur ylides).
Cyclopropane formation by electroreductive coupling of activated olefins and gem-polyhalo compounds
Leonel, Eric,Paugam, Jean Paul,Condon-Gueugnot, Sylvie,Nedelec, Jean-Yves
, p. 3207 - 3218 (2007/10/03)
Cyclopropyl derivatives have been prepared with satisfactory yields by electroreductive coupling of activated olefins and gem-polyhalo compounds. The reaction is efficient when the olefin is more easily reduced than the organic halide. Two types of interm
184. Stereoselective Hydrolysis of Substituted Cyclopropanedicarboxylates with Pig Liver Esterase
Walser, Paula,Renold, Peter,N'Goka, Victor,Hosseinzadeh, Fatemeh,Tamm, Christoph
, p. 1941 - 1952 (2007/10/02)
The hydrolysis of the meso-cyclopropane-1,2-dicarboxylates 1a-3a, 4, 5a, 6a, and 9, containing various substituents at C(3), and of the rac-3-phenylcyclopropane-1,2-dicarboxylates 7a, 8a, and 10 with pig liver esterase (PLE) is described.The stereoselectivity and absolute configurations of the products were determined.An interpretation of results was attempted on the basis of a recent active-site model for PLE.