4 years ago

Catalytic Annulation of Diethyl Methylenecyclopropane-1,1-dicarboxylate with 1,1-Dicyanoalkenes

Catalytic Annulation of Diethyl Methylenecyclopropane-1,1-dicarboxylate with 1,1-Dicyanoalkenes
Shinji Tsunoi, Ikuya Shibata, Itaru Suzuki
The catalytic annulation of methylenecyclopropane 1 with 1,1-dicyanoalkenes 2 using a Mg–Sn catalytic system was developed. Selective formation of cyclopentylidenemalonates 3 and spiro[2,3]hexane-1,1-dicarboxylates 4 was accomplished via the choice of a proper solvent and an effective catalytic system.

Publisher URL: http://dx.doi.org/10.1021/acs.orglett.7b01023

DOI: 10.1021/acs.orglett.7b01023

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