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8.2.3.2.5.2 Variation 2: Methyl Cinnamates from Dimethyl Benzylidenemalonates

DOI: 10.1055/sos-SD-008-00645

Paul Krapcho, A.Science of Synthesis, (20068940.

The demethoxycarbonylation of dimethyl benzylidenemalonates 32 by heating in dimethyl sulfoxide/sodium chloride/water (or in dimethylformamide with other salts) generally leads predominantly to the corresponding methyl (E)-cinnamates 33 (Scheme 25).[‌88‌,‌89‌]

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