反应详情

Using the method described in Example 5(i). 1,5-dibromopentane (23 g, 0.1 mol) and ethylisobutyrate (10.4 g, 0.09 mol) were reacted in the presence of lithium diisopropylamide (0.1 mol) and hexamethylphosphoramide (22 g) to give the title compound as an oil (7.4 g).