反应详情

A mixture of 2-hydroxyimino-2-(3-hydroxyphenyl)acetic acid (syn isomer) (9.06 g.), benzoyl chloride (32.25 g.) and tetrahydrofuran (50 ml.) was stirred for 6 hours at ambient temperature. To the reaction mixture was added petroleum ether under 5° C. Precipitates were collected by filtration, washed with petroleum ether and dried to give 2-benzoyloxyimino-2-(3-hydroxyphenyl)acetic acid (syn isomer) (11.12 g.), mp 140° to 142° C. (dec.).

1. customPrecipitates
2. filtrationwere collected by filtration
3. washwashed with petroleum ether
4. customdried