Toluene → HCID 19937045, compound

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Reaction Steps

A mixture of 3-allyl-4,5-dimethoxybenzaldehyde (10.3 g, 0.05 mole), of di-(2-ethylhexyl) malonate (16.4 g, 0.05 mole), of toluene (20 ml), of acetic acid (0.41 ml) and of piperidine (0.77 ml) was heated at reflux for 5 hours with a Dean Stark. After cooling, washing the toluene phase with water, drying and evaporating off the solvent, an orange-colored oil was obtained, which was purified by chromatography on a column of silica 60 (eluent: 90.10 heptane/ethyl acetate) to give di-(2-ethylhexyl) 3-allyl-4,5-dimethoxybenzalmalonate (colorless oil, 15 g, yield=64%) which had the following characteristics:

Provenance & Evidence