sodium hydroxide in isopropyl alcohol 2.5 h; Heating;

1.1: methanol / 1 h / 6 - 38 °C 1.2: 92.1 percent / conc. HCl / 1 h / 37 - 50 °C 2.1: 99.8 percent / aq. NaOH / propan-2-ol / 2.5 h / Heating View Scheme

alpha,alpha-dimethylbenzyl hydroperoxide; Zeolite 3A; (R)-(-)-α-hydroxybenzeneacetic acid; titanium(IV) isopropylate in dichloromethane T=25°C;