Table 1. Comparative Study Depicting Reaction Yields and Ratio of 2,3-Dibromo (a) and 1,3-Dibromo (b) Formed after the Addition of Bromine to Allylaryls (EDG vs EWG).

^aReaction conditions: allylaryl 1a–f (0.25 mmol, 1 equiv), bromine (0.33 mmol, 53 mg, 17 μL, 1.3 equiv), in 1.0 mL of CDCl₃ at 0 °C for 10 min.

^bCrude ¹H NMR yield of reaction using mesitylene as the internal standard.

^cIsolated yield using silica gel flash chromatography.

^dRatio determined by ¹H NMR spectroscopy.