Water → 2-(2-Bromoethoxy)carbazole

Participants

Reaction Steps

A mixture of 2-hydroxycarbazole (30 g; mfd. by Aldrich), potassium carbonate (113.1 g; mfd. by KANTO CHEMICAL) and 1,2-dibromoethane (211 mL; mfd. by TOKYO KASEI KOGYO) in 2-butanone (165 mL; mfd. by Wako Pure Chemical Industries) was stirred vigorously at a reflux temperature for 28 hours. The reaction solution was poured into water (1050 mL) all at once and stirred. The precipitated crystal obtained by filtration was washed with water (1 L) and 2-propanol (250 mL), and then dried under reduced pressure at room temperature to give the title compound (43.43 g) as a white solid.

Provenance & Evidence