反应详情

The preparation is carried out as described in Example 1, using 17.8 g (0.11 mole) of benzoylacetone, 30.5 g (0.1 mole) of n-hexadecyl chloroformate and 100 ml of diethyl ether as well as 11 g (0.11 mole) of triethylamine. The crude product (34.7 g) obtained is recrystallised from a mixture of 85 ml of isopropanol and 10 ml of water. The white crystals melt at 31° C.