potassium tert-butylate 1.) THF, Rt, 30 min; 2.) THF, 10-20 deg C, 50 min; 3.) AcOH, 160 deg C, 7 hr; Yield given. Multistep reaction. Yields of byproduct given;

potassium tert-butylate in tetrahydrofuran; water

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Multi-step reaction with 3 steps 1: tetrahydrofuran; toluene / 20 h / 90 - 100 °C2: 1.) Ni(II)(CH3COO)2, NBH4, ethylene diamine; 2.) H2 / 1.) ethanol, Rt, 30 min; 2.) ethanol, 5 kg/cm2, 20-30 deg C3: 20percent HCl / CH2Cl2 / 1 h / Ambient temperature  

Multi-step reaction with 2 steps 1: 1.) Ni(II)(CH3COO)2, NBH4, ethylene diamine; 2.) H2 / 1.) ethanol, Rt, 30 min; 2.) ethanol, 5 kg/cm2, 20-30 deg C2: 20percent HCl / CH2Cl2 / 1 h / Ambient temperature