tetrabutylammomium bromide in N,N-dimethyl-formamide T=-5 - 0°C; Dehalogenation; Carboxylation; Electrochemical reaction; Further byproducts given;

1: 85.5 percent / 1a) AlCl3, 1b) AlCl3 / 1a) r.t, 8 h, 1b) -10 deg C, 16 h; 2) repetition of the procedure 2: 98 percent / AlCl3 / CS2 / 6 h / Ambient temperature; other solvent: CCl4 3: 62 percent / S2Cl2, AlCl3 (Silberrad's reagent) / SO2Cl2 / Heating 4: 1) 30percent Oleum, 2) ice / 1) 24 h, r.t. View Scheme

1: 98 percent / AlCl3 / CS2 / 6 h / Ambient temperature; other solvent: CCl4 2: 62 percent / S2Cl2, AlCl3 (Silberrad's reagent) / SO2Cl2 / Heating 3: 1) 30percent Oleum, 2) ice / 1) 24 h, r.t. View Scheme

1: 62 percent / S2Cl2, AlCl3 (Silberrad's reagent) / SO2Cl2 / Heating 2: 1) 30percent Oleum, 2) ice / 1) 24 h, r.t. View Scheme

sulfuric acid; d-N,a-dimethylphenethylamine 1) 24 h, r.t.; Yield given. Multistep reaction;

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bei der Chlorierung;