2,2-Diethoxyethylamine → HCID 15035615, compound

Participants

Reaction Steps

A mixture of 10 parts of phenyl [4-[4-(4-methoxyphenyl)-1-piperazinyl]phenyl]carbamate monohydrochloride (described in example XVII of U.S. Pat. No. 4,267,179), 3 parts of 2,2-diethoxy-ethanamine and 100 parts of 1,4-dioxane was stirred for 6 hours at reflux temperature. After cooling, the precipitate was filtered off, washed with 1,4-dioxane and purified by column chromatography (silica gel; CHCl3 /CH3OH 99:1). The eluent of the desired fraction was evaporated and the residue was crystallized from 1,4-dioxane, yielding 3.9 parts of N-(2,2-dimethoxyethyl)-N'-[4-[4-(4-methoxyphenyl)-1-piperazinyl]phenyl]urea; mp. 225° C. (interm. 8).

Provenance & Evidence