imidoyl chlorides 3 with ketimines 1a provides fluorinated 1,3-diimines, which were exclusively isolated as vinylogous amidine tautomers 2beta, with good yields. Fluorinated beta-enamino ketones 4 are obtained by regioselective hydrolysis of 2. Complementary methods for the synthesis of regioisomeric beta-enamino ketones 4 and 5 are also reported. These methods include the reaction of azaenolates of
氟化亚
氨酰
氯3与酮
亚胺1a的反应提供了
氟化1,3-二
亚胺,其被单独分离为
乙烯基og互变异构体2beta,具有良好的收率。
氟化的β-烯胺酮4是通过2的区域选择性
水解而获得的。还报道了用于合成区域异构的β-烯胺酮4和5的补充方法。这些方法包括酮
亚胺的氮杂酸酯与
氟化酯6的反应以及酮烯酸酯与
氟化亚
氨酰
氯3的反应。还测试了这些体系在
水解反应中的行为。