反应详情

By the method of Example 21, 0.970 g (0.004 mole) of cis-3-(2-chloro-3,3,3-trifluoropropenyl)-2,2-dimethylcyclopropanecarboxylic acid and 0.75 g (0.004 mole) of 4-bromomethyl-2-fluoropyridine (Example 22) were reacted in the presence of 0.609 g (0.004 mole) of 1,8-diazabicyclo[5.4.0]undec-7-ene in 20 ml of acetonitrile to produce 1.09 g of (2-fluoropyridin-4-yl)methyl cis-3-(2-chloro-3,3,3-trifluoropropenyl)-2,2-dimethylcyclopropanecarboxylate, compound 28 in the Tables below. The ir, proton nmr, and 19c nmr spectra were all consistent with the proposed structure.