The major tautomer of several triketone derivatives in organic and aqueous solutions has been determined. Their solvent- and base-sensitive properties have been applied in the design of a polarity-sensitive fluorescent probe and an acidichromic colorant, respectively. The regioselective acetylation and methylation of 2-acyldimedone, 3-acyl-4-hydroxycoumarin, and 2-acyl-1,3-indandione have also been
已经确定了有机和
水溶液中几种三酮衍
生物的主要互变异构体。它们对溶剂和碱的敏感特性已分别应用于极性敏感的荧光探针和酸性变色
着色剂的设计中。还研究了2-酰基二酮,3-酰基-
4-羟基
香豆素和2-酰基-
1,3-茚满二酮的区域选择性乙酰化和甲基化。结果表明,前两个的乙酰化和甲基化特别发生在环内烯醇氧处,而对于后者,它们发生在环外的烯醇氧处。