T=180°C;

1: 180 °C 2: SOCl2 View Scheme

1: 1.) 30 min, 150 deg; 2.) in 15 min to 180 deg C 2: H2SO4 / 1 h / Heating 3: 1.) LiAlH4; 2.) HCl / 1.) diethyl ether, 8 h, reflux; 2.) 0 deg C, water 4: pyridine / 1 h / 0 °C 5: LiBr / acetone / 5 h / Heating View Scheme

1: 1.) 30 min, 150 deg; 2.) in 15 min to 180 deg C 2: H2SO4 / 1 h / Heating View Scheme