A convenient synthesis of monoacetals of α-diones, i. e. α-keto acetals, was developed by silver ion induced alcoholysis of regiospecifically formed α-bromo-α-chloro ketones. Similarly, the corresponding α,α-dialkoxy ketimines were synthesized from silver ion induced alcoholysis of α-bromo-α -chloro ketimines. Both methods provide an easy access to protected forms of α-diones, useful as building blocks in organic chemistry.
通过
银离子诱导δ-
溴-δ-
氯酮的特异性醇解,开发出了δ-二酮的单
乙酸酯(即δ-酮
乙酸酯)的简便合成方法。同样,通过
银离子诱导δ±-
溴δ-
氯酮的醇解,也合成了相应的δ±,δ-二烷氧基酮
亚胺。这两种方法都提供了获得δ-二酮保护形式的简便途径,可用作有机
化学中的构建基块。