反应详情

9.64 g of oxalyl chloride are added to the solution of 6.1 g of 4-carbomethoxy-2-methylbutanoic acid (US-Patent 4,052,511) in 50 ml of methylene chloride. The mixture is refluxed for two hours and evaporated, to yield the 4-carbomethoxy-2-methylbutanoyl chloride, which is used as such without further purification.

1. temperatureThe mixture is refluxed for two hours
2. customevaporated