A simple and efficient approach for the synthesis of privileged oxime esters by employing
donor-acceptor cyclopropane diesters (DACs) as one of the potential precursors is
reported. The strategy involves Lewis acid catalyzed ring-opening of DACs, resulting
in an open-chain intermediate followed by the base-mediated construction of the corresponding
oxime esters in a one-pot reaction. Moreover, the process also features the synthesis
of diethyl 4-(4-methoxyphenyl)azete-2,2(3H)-dicarboxylate.
Key words
donor-acceptor cyclopropanes - zwitterionic compound - oxime esters - one-pot synthesis
- bioactive compounds