Acetic Acid → Ethyl 2-(2-benzoyloxyethoxyimino)-4-chloro-3-oxobutyrate

Participants

Reaction Conditions

Reaction Steps

A mixture of ethyl 2-(2-benzoyloxyethoxyimino)-3-oxobutyrate (syn isomer) (28 g.), sulfuryl chloride (13.5 g.) and acetic acid (30 ml.) was stirred at 40° C. for 10 minutes and at room temperature for 5.5 hours. After adding water (200 ml.) to the resultant solution, the mixture was extracted with methylene chloride. The extract was washed with water, a saturated aqueous solution of sodium bicarbonate and a saturated aqueous solution of sodium chloride in turn, dried over magnesium sulfate, and then concentrated in vacuo to give ethyl 2-(2-benzoyloxyethoxyimino)-4-chloro-3-oxobutyrate (syn isomer) (29 g.).

Provenance & Evidence