2-Chloroethyl isocyanate → HCID 178478080, compound

Participants

Reaction Steps

1-(2,3-dichlorophenyl)-2-(pyridin-4-yl)ethanamine (0.30 g, 1.13 mmol) in dichloromethane (6.0 mL) was added chloroethylisocyanate (0.11 mL, 1.29 mol). The solution was stirred at room temperature for one hour. The solvent was removed under vacuum. The residue was added water, acetone, and heated at 100° C. for one hour. The mixture was cooled to room temperature, and basified with NaOH (2M) to pH>7. The aqueous layer was extracted with chloroform/isopropanol (3:1, 3×, 200 mL). The pooled organic layer was dried over magnesium sulfate. The mixture was filtered. The filtrate was added silica gel, and the solvents were removed under vacuum. Purification by chromatography on silica gel (2% saturated ammonia methanol in dichloromethane) gave 1-(2,3-dichlorophenyl)-N-(oxazolidin-2-ylidene)-2-(pyridin-4-yl)ethanamine Compound 17 as a white solid (0.21 g, 0.63 mmol, 56% yield).

Provenance & Evidence