Reacción #1909788

Ecuación de reacción

2-(4-methylpiperazin-1-yl) ethanol

3,5-dichloro-2,4-dihydroxybenzoic acid methyl ester

triphenylphosphine

Hydrochloric acid

→

title compound

3,5-Dichloro-2-hydroxy-4-[2-(4-methylpiperazin-1-yl)-ethoxy]benzoic acid methyl ester

Disolventes

chloroform

Condiciones de reacción

Procedimiento

To a solution of 2-(4-methylpiperazin-1-yl) ethanol (14.42 g) and 3,5-dichloro-2,4-dihydroxybenzoic acid methyl ester (52.15 g) in chloroform (400 ml) were added triphenylphosphine (28.85 g) and azodicarboxylic acid diisopropyl (21.7 ml) at room temperature, and the mixture was stirred for 16 hours, 1N Hydrochloric acid (300 ml) was added to the reaction mixture for extraction to give a crude product of the title compound. Step 4) 3,5-Dichloro-2-hydroxy-4-[2-(4-methylpiperazin-1-yl)ethoxy]-benzoic acid (VII)

Fuente