反应详情

11.3 g (55 mmol) of 3-methyl-5(2,2,3-trimethylcyclopent-3enyl)-pent-3-en-2-one was cyclopropanated with 14.1 g (63 mmol) of trimethylsulfoxonium iodide and 3.08 g (64 mmol) of 50% oil suspension of sodium hydride according to Example 11a giving 5.4 g (45% yield) of 1-[1-methyl-2(2,2,3trimethylcyclopent-3-enylmethyl)cyclopropyl]ethanone.