5-Bromoindole

Chemical Properties

white to light brown powder or chunks

Uses

A potential inhibitor of GSK-3

Purification Methods

Purify it by steam distillation from a faintly alkaline solution. Cool the aqueous distillate, collect the solid, dry it in a vacuum desiccator over P2O5 and recrystallise it from aqueous EtOH (35% EtOH) or pet ether/Et2O. UV in MeOH has at 279, 287 and 296nm (log 3.70, 3.69 and 3.53). The picrate has m 137-138o(dec) (from max Et2O/pet ether). [UV: Thesing et al. Chem Ber 95 2205 1962, UV and NMR: Lallemand & Bernath Bull Soc Chim Fr 4091 1970, Beilstein 20/7 V 36.]