Hydrazine, propyl- → HCID 54181106, compound

Participants

Reaction Steps

A mixture of 5.1g of tetrahydro-3,5-bis[(4-chlorophenyl)methylene]-4H-thiopyran-4-one-1,1-dioxide and 0.96g of n-propyl hydrazine in 250ml of methanol is heated at reflux temperature for 45 minutes. The solids which precipitate out are collected by filtration. The crude product is recrystallized twice from acetone/hexane to give 2.5g of the title compound, melting point 208°-210°C.

Provenance & Evidence