1: α-chloro-2',5'-dimethylacetophenone; 3-hydroxy-2,2-dimethylpropanol With toluene-4-sulfonic acid in xylene 6 h; Heating / reflux; 2: potassium acetate in ethylene glycol T=183 - 189°C; 5 h; 3: With hydrogenchloride; sodium hydroxide; water Product distribution / selectivity; more than 3 stages;
