Sulfuric Acid → HCID 21556755, compound

Participants

Reaction Steps

A 128-ml portion of concentrated sulfuric acid was added to 300 g of ice while keeping the temperature at 0°-10°C. Then 41 g of 4-bromo-2,5-di-sec-butylbenzenesulfonyl chloride was added. While maintaining the temperature at 0°-10°C, 65 g of zinc dust was added with good agitation over a period of 2 hours. The reaction mixture was then heated under reflux on a steam bath for 5 hours. After cooling, the mixture was extracted into methylene dichloride, dried over magnesium sulfate, filtered, and concentrated to an oil which was distilled, to give 27 g of 4-bromo-2,5-di-sec-butylbenzenethiol, bp 106°-107°C/0.22 mm, nD25 1.5599.

Provenance & Evidence