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单词 dehydrogenate
释义

Definition of dehydrogenate in English:

dehydrogenate

verbˌdiːˌhʌɪˈdrɒdʒəneɪtdiˌhaɪˈdrɑdʒəneɪt
[with object]Chemistry
  • Remove a hydrogen atom or atoms from (a compound)

    a dehydrogenated analogue of cortisone
    Example sentencesExamples
    • Because lignins are complex polymers, and no standard composition can be defined, calculations were based on end products being the dehydrogenated residues of the three main monolignols.
    • Alcohol dehydrogenase is an enzyme that takes a hydrogen atom from (dehydrogenates) an alcohol molecule.
    • Scientists found more dehydrogenates in Chinese livers than westerners through studies of intoxicated people from various countries.
    • Carbon dioxide is formed when formic acid is dehydrogenated.
    • Addition of ethylene, through a Friedel-Crafts alkylation, to benzene affords ethylbenzene, which can be dehydrogenated to give styrene.

Derivatives

  • dehydrogenation

  • noun ˌdiːhʌɪˌdrɒdʒəˈneɪʃ(ə)nˌdihaɪˌdrɑdʒəˈneɪʃ(ə)n
    Chemistry
    • A second dehydrogenation turns acetaldehyde into acetic acid, aka vinegar, which gets digested as usual.
      Example sentencesExamples
      • The entire process simulation - alcohol dehydrogenation, carbonyl polishing and distillation - was operated continuously for eight weeks.
      • Benzene is manufactured industrially by dehydrogenation and dealkylation of appropriate fractions of petroleum.
      • Manufacture of ketones can also be carried out by the dehydrogenation of a secondary alcohol at high temperature.
      • Industrially, they are mainly manufactured as the products of the dehydrogenation, or oxidation, of secondary alcohols.

Origin

Mid 19th century: from de- (expressing removal) + hydrogen + -ate3.

 
 

Definition of dehydrogenate in US English:

dehydrogenate

verbdēˌhīˈdräjənātdiˌhaɪˈdrɑdʒəneɪt
[with object]Chemistry
  • Remove a hydrogen atom or atoms from (a compound)

    a dehydrogenated analogue of cortisone
    Example sentencesExamples
    • Alcohol dehydrogenase is an enzyme that takes a hydrogen atom from (dehydrogenates) an alcohol molecule.
    • Carbon dioxide is formed when formic acid is dehydrogenated.
    • Scientists found more dehydrogenates in Chinese livers than westerners through studies of intoxicated people from various countries.
    • Addition of ethylene, through a Friedel-Crafts alkylation, to benzene affords ethylbenzene, which can be dehydrogenated to give styrene.
    • Because lignins are complex polymers, and no standard composition can be defined, calculations were based on end products being the dehydrogenated residues of the three main monolignols.

Origin

Mid 19th century: from de- (expressing removal) + hydrogen + -ate.

 
 
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更新时间:2025/1/9 7:26:43