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2005
Cyclopropanation reactions
O 0138
A One-Pot Multicomponent Coupling Reaction for the Stereocontrolled Synthesis
Allyl-Substituted Cyclopropanes. — Novel methods are described for the prepa34- 047 of
ration of the title compounds from alkynes and 2 equiv. of 2-bromoacrylate. The processes are based on the intermediate formation of alkylmagnesium halides or zirconacyclopentanes and subsequent Cu(I)-catalyzed coupling with acrylate. — (CHEN, C.;
XI*, C.; SHI, Y.; HONG, X.; Synlett 2005, 6, 911-914; Dep. Chem., Tsinghua Univ.,
Beijing 100084, Peop. Rep. China; Eng.) — Mais
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