Reaction #1797491

Reaction equation

phthalic acid

2-butoxyethanol

KOH

→

Mono(2-butoxyethyl)phthalic Acid

Conditions

Workup

1. 1
   Otherequipped with stirring blades
2. 2
   Temperaturethermometer and Dimroth condenser, heated
3. 3
   Temperatureraised to a temperature of 130° C., which
4. 4
   Temperaturewas maintained for 1 hour
5. 5
   TemperatureThe mixture was subsequently cooled to 60° C

Procedure

148.1 of anhydrous phthalic acid and the molar equivalent 118.2 n of 2-butoxyethanol were added to a 500 ml glass round-bottomed flask equipped with stirring blades, thermometer and Dimroth condenser, heated while slowly stirring, and after the generated heat at about 90° C. wore off, raised to a temperature of 130° C., which was maintained for 1 hour. The mixture was subsequently cooled to 60° C. The acid value (number of mg of KOH necessary to neutralize 1 g of a sample) of the reaction solution was 226.0. Since the acid value for the case where the reaction is 100% complete is 210.7, the reaction rate was computed to be 93%.

Source