Piperidin-4-ol → 1-{5,6-Bis[4-(dimethylamino)phenyl]-1,2,4-triazin-3-yl}piperidin-4-ol

Participants

Reaction Steps

Three grams of 5,6-bis(4-dimethylaminophenyl)-3-methylthio-1,2,4-triazine and 1.5 g. of 4-hydroxypiperidine were heated at about 150°C. for 12 hours. The reaction mixture was treated with water and the product was collected. The product was dissolved in benzene and the solution was slowly added to n-hexane. The solid which precipitated was recrystallized from ethyl acetate to yield 1.6 g. of 5,6-bis(4-dimethylaminophenyl)-3-(4-hydroxypiperidine-1,2,4-triazine, mp about 186°-188°C.

Provenance & Evidence