1: 95 percent / peracetic acid / 50 - 55 °C 2: 97 percent / LiAlH4 / tetrahydrofuran / 3 h / 20 °C 3: 96 percent / n-BuLi; TsCl / hexane; tetrahydrofuran / 0 - 20 °C View Scheme

peracetic acid T=50 - 55°C;