反应详情

温度

100 °C

A solution containing 1.16 g of thiohydantoin, 1.72 g of 3,4-dihydroxy-5-chlorobenzaldehyde and 0.2 ml of piperidine in 20 ml of acetic acid was heated for 4 h at 100° C. The product was filtered and washed with ether. Yield 1.0 g, mp 303°-304° C.

1. filtrationThe product was filtered
2. washwashed with ether