反应详情

The reaction was carried out in a manner similar to Example 186 a) except for using 0.41 g (1.62 mmol) of ethyl 4-chloro-6-hydroxy-1-methyl-2-indolecarboxylate, 0.09 g (2.23 mmol) of 60% sodium hydride, 0.34 g (2.40 mmol) of 1-fluoro-4-nitrobenzene and 5 ml of dimethylformamide. Ethyl 4-chloro-1-methyl-6-(4-nitrophenoxy)-2-indolecarboxylate was thus obtained in an amount of 0.51 g (92.0%).