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单词 benzopinacol
释义

benzopinacol

英汉-汉英词典
n. 苯频哪醇;四苯乙醇
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  • bespangle v. 以小亮片装饰
  • Spenglerian adj. 施本格勒理论的
英语百科

Pinacol coupling reaction

A pinacol coupling reaction is an organic reaction in which a carbon–carbon covalent bond is formed between the carbonyl groups of an aldehyde or a ketone in presence of an electron donor in a free radical process. The reaction product is a vicinal diol. The reaction is named after pinacol (also known as 2,3-dimethyl-2,3-butanediol or tetramethylethylene glycol), which is the product of this reaction when done with acetone as reagent. The reaction is usually a homocoupling but intramolecular cross-coupling reactions are also possible. Pinacol was discovered by Wilhelm Rudolph Fittig in 1859.

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