1-Chloro-2,4-Dinitrobenzene → HCID 23048845, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of 4.5 parts of 4-(1-piperazinyl)phenol, 5.5 parts of 1-chloro-2,4-dinitrobenzene, 2.6 parts of sodium carbonate and 90 parts of N,N-dimethylacetamide was stirred overnight at 50° C. After cooling, the mixture was poured into ice water and the product was extracted twice with 4-methyl-2-pentanone. The undissolved product was dissolved in 2-propanol. This solution and the combined organic layers were washed with water, dried, filtered and evaporated. The residue was converted into the hydrochloride salt in 2-propanol. The salt was filtered off and crystallized twice: first from a mixture of 2-propanol and water (10:1 by volume) and then from a mixture of methanol and water (10:1 by volume). The product was filtered off and dried, yielding 3.9 parts (37.7%) of 4-[4-(2,4-dinitrophenyl)-1-piperazinyl]-phenol monohydrochloride, methanol(1:1); mp. 178.0° C. (compound 1.13).

Provenance & Evidence