1: 2,4-dichloro-6-methylbenzoic acid; 2,4-Dichloro-3-methyl-benzoic acid With oxalyl dichloride; N,N-dimethyl-formamide in dichloromethane T=0°C; 1 - 2 h; 2: methanol 16 h; 3: With N-bromosuccinmide; dibenzoyl peroxide in tetrachloromethane 5 h; Heating / reflux;

1: 2,4-dichloro benzoic acid With sec.-butyllithium in tetrahydrofuran; cyclohexane T=-78°C; 1 h; 2: methyl iodide in tetrahydrofuran; cyclohexane T=-78 - 25°C; 4 h; 3: With hydrogenchloride; water more than 3 stages;

potassium hydroxide

1: durch Austausch von NH2 gegen CN 2: alcoholic KOH-solution View Scheme