反应详情

1 part of (+)-p-(2-thenoyl)hydratropic acid α-methylbenzylamine is suspended in water and acidified with hydrochloric acid. The product is extracted with ether. The organic layer is washed with water, dried, filtered and evaporated in vacuo. The oily residue solidifies on triturating in petroleumether. The solidified product is filtered off and dried in vacuo at 50° C, yielding (-)-p-(2-thenoyl)hydratropic acid; [α](1% MeOH) = -45.6°.

1. extractionThe product is extracted with ether
2. washThe organic layer is washed with water
3. customdried
4. filtrationfiltered
5. customevaporated in vacuo
6. customon triturating in petroleumether
7. filtrationThe solidified product is filtered off
8. customdried in vacuo at 50° C