Reacción #77700

Ecuación de reacción

4-carboxyphenylboronic acid

sulphuric acid

ethanol

→

desired material

4-Ethoxycarbonylphenylboronic acid

Condiciones de reacción

Tratamiento posterior

1. 1
   Temperaturato reflux for two days
2. 2
   OtroThe residue was triturated with petroleum ether

Procedimiento

A solution of 4-carboxyphenylboronic acid (15 g, 0.09 mol), 99% ethanol (150 mL) and concentrated sulphuric acid (0.5 mL) was heated to reflux for two days. The volume was reduced to approximately 20 mL. The residue was triturated with petroleum ether to give 13.4 g of the desired material.

Fuente