Pyridine → HCID 86591959, compound

Participants

Reaction Steps

Ethyl 3-benzylamino-2-methylcrotonate (1-004-02) (97.83 g) was dissolved in diethyl ether (2 L). The reaction mixture was stirred under ice-cooling and nitrogen atmosphere. After pyridine (35.6 mL) was added to the reaction mixture, a solution of methoxyacetyl chloride (40.2 mL) in diethyl ether was added dropwise to the reaction mixture at 5 to 6° C. as internal temperature for 45 min. After 2 h, the reaction mixture was poured into ice-water (1.5 L), extracted twice with diethyl ether, and washed with water (1 L) and an aqueous solution of sodium bicarbonate. The extract was dried over magnesium sulfate, and evaporated under reduced pressure to give ethyl 1-benzylmethoxyacetamide-2-methylcrotonate (1-004-03) (111.47 g, 91.3%) as an oil.

Provenance & Evidence