反应详情

The method of Example 1 was repeated using zinc powder (4.1 g), copper (I) chloride (0.63 g), molecular sieve 4A (4.2 g), tetrahydrofuran (72 ml), 1-(4-ethoxyphenyl)-1-formylcyclopropane (4.7 g), acetic anhydride (2.6 ml) and methyl dichloro-fluoroacetate (3.3 g) to yield the title compound (3.4 g, 52%).