Bromine → 7-Bromo-5-nitroindoline

Participants

Reaction Conditions

Reaction Steps

To a solution of 5-nitroindoline (from Aldrich, 2.0 g, 12.2 mmol) in 15 mL of AcOH was added Br2 (1.0 mL, 19.4 mmol) in a portion and the resulting solution was stirred for 1 h at 25° C. Reaction mixture was concentrated in vacuo, yielding a yellow solid (3.9 g, >95%) of the desired product as a HBr salt, which was subjected to the following reaction without further purification.

Provenance & Evidence