Cinnamaldehyde → HCID 10456106, compound

Participants

Reaction Steps

1-(2-Chloropyridin-4-yl)carbonylspiro[indoline-3,4′-piperidine]trifluoroacetic acid salt (0.44 g) and trans-cinnamaldehyde (0.29 g) were suspended in tetrahydrofuran (8 ml) and ethanol (6 ml). Borane-pyridine complex (0.26 ml) was added and the reaction stirred vigorously overnight at room temperature. The mixture was evaporated and partitioned between dichloromethane and water. The organics were dried over anhydrous magnesium sulfate and evaporated in vacuo. Flash chromatography [SiO2; ethyl acetate-hexane-triethylamine (25:75:1), increasing polarity to (50:50:1)] yielded 0.42 g (94%) of the desired product.

Provenance & Evidence