Реакция #1909788

Уравнение реакции

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

Растворители

chloroform

Условия реакции

Методика

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)

Источник