Water → HCID 21071273, compound

Participants

Reaction Steps

A mixture of 3-amino-5-ethynylpyridine (2.73 g, 23.1 mmol) and triethylamine (3.54 mL, 25.42 mmol) in dichloromethane was cooled in an ice bath. A solution of dichloroacetyl chloride (2.57 mL, 25.42 mmol) in dichloromethane was added dropwise. After stirring for one more hour, water and ethyl acetate were added. The organic layer was separated, washed with saturated sodium hydrogen carbonate, dried over sodium sulfate, filtered and concentrated in vacuo to yield 3-(2,2-dichloroacetamido)-5-ethynylpyridine (3.5 g).

Provenance & Evidence