1: 1. MCPBA 2) 1N HCl / 1) CH2Cl2, 4 hr, 20 deg C 2) 100 deg C, 1.5 hr 2: 1) Te, NaBH4 2) 1N NaOH / 1) EtOH, reflux 2) -> pH ca. 12, EtOH 3) THF, reflux, ca. 2 hr View Scheme

ethylaluminum dichloride Yield given;