Synthesis of 2-[2-(Ethoxymethoxy)phenyl]spiro[cyclopropane-1,2'-indene]-1',3'-dione by unknow

Author:unknow
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Tags: An 1,3-indanedione-derived donor–acceptor cyclopropane, bearing the ethoxymethyl-protected phenolic group at the ortho-position of the donor aryl substituent, has been synthesized using a reaction sequence involving the Knoevenagel condensation of 1,3-indanedione with the corresponding protected salicylaldehyde followed by the Corey–Chaykovsky cyclopropanation of the obtained adduct with dimethylsulfoxonium methylide. The structure of the synthesized cyclopropane was unambiguously proved by single-crystal X-ray diffraction data., donor–acceptor cyclopropanes; Knoevenagel condensation; Corey–Chaykovsky cyclopropanation


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