Fig. 2: Examination of previously reported syntheses of (1H-indol-3-yl)methyl bromide (6a) and its derivatizations.

a Preparation of 6a via the Borodin–Hunsdiecker reaction reported by Eryshev et al. b Preparation of 6a via bromination with TMSCl and LiBr reported by Scanlan et al. c Preparation of 6a via bromination with PBr3 reported by Mekonnen Sanka et al.