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单词 Meldrum acid
释义

Meldrum acid

中文百科

米氏酸 Meldrum's acid

(重定向自Meldrum acid)

米氏酸(Meldrum's acid),又名Meldrum 酸丙二酸亚异丙酯,学名2,2-二甲基-1,3-二氧六环-4,6-二酮;2,2-二甲基-1,3-二恶烷-4,6-二酮。一种白色针状晶体,易溶于有机溶剂和碱性水溶液。熔点96摄氏度。

英语百科

Meldrum's acid 米氏酸

(重定向自Meldrum acid)
The synthesis of Meldrum's acid.
Reaction of the pyrolysis-product ketene with amines, hydroxyl compounds, or water gives amides, esters, or carboxylic acids respectively
Reaction of the acidic methylene of Meldrum's acid with various electrophiles gives alkyl and acyl products

Meldrum's acid or 2,2-dimethyl-1,3-dioxane-4,6-dione is an organic compound. The compound was first made in 1908 by Andrew Norman Meldrum by a condensation reaction of malonic acid with acetone in acetic anhydride and sulfuric acid. Meldrum misidentified the structure as a β-lactone of β-hydroxyisopropylmalonic acid. The correct structure is shown on this page.

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更新时间:2025/6/20 12:11:28