1.1: 42 percent / Br2; AcOH / 2 h / 50 - 60 °C 2.1: SOCl2 / diethyl ether 3.1: Mg(OEt)2 / diethyl ether; CCl4; ethanol / 10 h / Heating 3.2: diethyl ether; CCl4; ethanol / 0.67 h / Heating View Scheme

1.1: SOCl2 / diethyl ether 2.1: Mg(OEt)2 / diethyl ether; CCl4; ethanol / 10 h / Heating 2.2: diethyl ether; CCl4; ethanol / 0.67 h / Heating View Scheme

1: diethyl malonate With magnesium diethoxide in tetrachloromethane; diethyl ether; ethanol 10 h; Heating; 2: 4-bromo-1-naphthaleneacetyl chloride in tetrachloromethane; diethyl ether; ethanol 0.666667 h; Heating;

sulfuric acid; acetic acid 8 h; Heating;