反应详情

Bromine (1.36 ml, 26 mmol) is added dropwise to a stirred solution of 1-(2-chloro-pyridin-4-yl)-propan-2-one (Example 2a, 5.0 g, 29.5 mmol) in dioxane (150 ml) over 45 minutes at 5-10° C. After 20 minutes at room temperature the solvent is removed in vacuo to afford the titled compound as a yellow solid.

1. customAfter 20 minutes at room temperature the solvent is removed in vacuo