Sodium Carbonate → Trans-N-(2H-1-benzopyran-4-yl-methyl)-N-methyl-cinnamylamine

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Reaction Steps

1.15 g of trans-N-cinnamyl-methylamine in 20 ml of dimethylformamide are slowly added dropwise with stirring to 1.4 g of 4-chloromethyl-2H-1-benzopyrane and 0.8 g of sodium carbonate in 40 ml dimethylformamide. Stirring is continued for 24 hours at room temperature, the resulting mixture evaporated under vacuum and the residue taken up in ethylacetate/water. The organic phase is separated, washed with 1% tartaric acid, saturated NaHCO3 and saturated NaCl, dried over MgSO4 and concentrated by evaporation. After purification by chromatography on kieselgel (eluant toluene/ethylacetate 10/1) the title compound is obtained.

Provenance & Evidence