The tautomerism of phenylpyruvic acid (PPA) and its sodium salt was investigated. The 1H and 13C spectra of PPA in aprotic solvents and in methanol show almost complete prevalence of the enol form, whereas the keto form prevails only in water. The Z configuration was assigned to the sole ...
enol ether 【化】 烯醇醚 enol phosphate 烯醇磷酸酯 相似单词 enol n. [化]烯醇 tautomerism n. 互变现象 keto adj. [化] 酮类的 keto 表示“酮”之义 keto amide 酮酰胺 keto myo inositol 酮肌醇 keto urine 【医】 食物性酮尿 keto bodies 酮体 keto lactol 内缩酮 keto alcohol ...
互补异构(Keto-enol tautomerism) ?碱基有两种形式,即酮式和烯醇式,或者氨基式和亚氨基式。这两种 形式是可以互变的,特别在碱性的条件下(Bases have two different isomers- keto and enol, or lactam and lactim. The two forms can interconvert especially under alkaline conditions). ? 酮式或氨基式由于...
The meaning of KETO-ENOL TAUTOMERISM is tautomerism in which the keto and enol forms of a compound (as ethyl acetoacetate) are in equilibrium.
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keto-enol tautomerism 网络 互变异构; 酮-烯醇互变异构; 烯醇互变异构
keto-enol tautomerism 读音:美英 keto-enol tautomerism基本解释 酮-烯醇互变异构 分词解释 tautomerism互变异性
【2.1.2.1】互补异构(Keto-enol tautomerism) 嘧啶环和嘌呤环的芳香族性质以及环上取代基团(羟基和氨基)的富电子性质致使它们在溶液中,能够发生酮式(keto)-烯醇式(enol)或氨基式-亚氨基式的互变异构(tautomeric shift)。虽然碱基的这两种异构体是可以相互转变的,但在体内的主要形式为更稳定的酮式。这一点对于在...
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1) keto-enol tautomerism 酮-烯醇互变异构 1. Theketo-enol tautomerismof α-carbonylcyclododecanones has been studied by means of 1H NMR technology. 利用1H NMR技术研究了α-羰基环十二酮的酮-烯醇互变异构。 2) enol-keto tautomersim 烯醇-酮互变异构 ...