Triethylamine → N-(3-cyclopentyloxy-4-methoxyphenyl)-2,6-dichlorobenzamide

Beteiligte Stoffe

Reaktionsschritte

A stirred solution of 3-cyclopentyloxy-4-methoxyaniline (1 g) and triethylamine (0.69 mL) in dry dichloromethane (20 mL) at 0° C. is treated dropwise with 2,6-dichlorobenzoyl chloride (1.17 g). After stirring at this temperature for 30 minutes, the mixture is warmed to room temperature and stirred for a further 3 hours. The organic layer is washed with water (100 mL), dried and concentrated. The residue is recrystallized from a mixture of isopropanol and hexane, to give N-(3-cyclopentyloxy-4-methoxyphenyl)-2,6-dichlorobenzamide (0.6 g), m.p. 184°-185° C. [Elemental analysis: C,60.2,H,5.0; N,3.6; Cl18.9%; calculated: C,60.0; H,5.0; N,3.7; Cl18.65%].

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