反应详情

Analogously to Example 1 (a), reaction of 12.39 g (70.0 mmoles) of 6-nitro-1-indanone in 130 ml of glacial acetic acid, containing 0.5 ml of 48% strength aqueous hydrobromic acid, and 11.2 g (70 mmoles) of bromine in 70 ml of glacial acetic acid, in accordance with the instructions indicated above, gives 2-bromo-6-nitro-1-indanone of melting point 102°-105° C. which, as the pure product after reprecipitation from ethanol/water, has a melting point of 114°-116° C.