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单词 diene
释义

Definition of diene in English:

diene

noun ˈdʌɪiːnˈdīēn
Chemistry
  • An unsaturated hydrocarbon containing two double bonds between carbon atoms.

    Example sentencesExamples
    • They found that the lead catalyst was effective in reacting the well known Si-containing reagent Danishefsky's diene with various aldehydes to produce dihydropyrone hetero-cycles.
    • The formation of conjugated dienes occurs when free radicals attack the hydrogens of methylene groups separating double bonds and leading to a rearrangement of the bonds.
    • They established that the conjugated triene was further hydrogenated to a non-conjugated diene and eventually to the monoene 18.
    • While supplementation was able to reduce thiobarbituric reactive substances, it was only able to slightly lower the quantity of conjugated dienes formed.
    • They had reacted a conjugated diene with a simple alkene to generate a cycloalkane.

Origin

Early 20th century: from di-1 'two' + -ene.

 
 

Definition of diene in US English:

diene

nounˈdīēn
Chemistry
  • An unsaturated hydrocarbon containing two double bonds between carbon atoms.

    Example sentencesExamples
    • The formation of conjugated dienes occurs when free radicals attack the hydrogens of methylene groups separating double bonds and leading to a rearrangement of the bonds.
    • They found that the lead catalyst was effective in reacting the well known Si-containing reagent Danishefsky's diene with various aldehydes to produce dihydropyrone hetero-cycles.
    • While supplementation was able to reduce thiobarbituric reactive substances, it was only able to slightly lower the quantity of conjugated dienes formed.
    • They had reacted a conjugated diene with a simple alkene to generate a cycloalkane.
    • They established that the conjugated triene was further hydrogenated to a non-conjugated diene and eventually to the monoene 18.

Origin

Early 20th century: from di- ‘two’ + -ene.

 
 
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更新时间:2024/12/23 10:51:49