1) By condensation of phenol (I) with 1-n-butoxy-2,3-epoxypropane (VII) in presence of potassium hydroxide. 2) By condensation of phenol (I) with 1-chloro-2,3-epoxypropane (II) followed either by addition of n-butanol (VI) in presence of a Lewis acid or in presence of a base (IV).