| 单词 | addition reaction |
| 释义 | addition reaction noun[C] chemistryspecializeduk/əˌdɪʃ.ən riˈæk.ʃən/us/əˌdɪʃ.ən riˈæk.ʃən/achemicalreactionin which two or moresubstancescombinetoforma newsubstance 加成反应（两种或多种物质组合生成一种新物质的化学反应）Physical & chemical processes
addition reaction| American Dictionaryaddition reaction noun[C] us/əˈdɪʃ·ən riˌæk·ʃən/chemistry achemicalreaction in which two or moresubstancescombinetoforma newsubstance Examplesofaddition reactionaddition reaction The first step in this reaction is anadditionreactionof sodium bisulfite to an aromatic double bond. From Wikipedia  This example is from Wikipedia and may be reused under a CC BY-SA license.The first reaction shown below, from the synthesis of taxane skeleton, uses a copper-based catalyst supported by a chiral phosphoramidite ligand for a conjugate carbonyladditionreaction. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.Conjugate addition reactions of allylsilanes are possible, although unsaturated aldehydes undergo only 1,2 addition. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.Their work, first published in 1937, was intended as a preliminary progress report of thermochemical studies of energy changes during addition reactions of various unsaturated and cyclic compounds. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.The reaction is a form of electrophilic addition; it is similar to the halogenadditionreaction. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.Two non-polaradditionreactionexists as well called free radical addition and cycloadditions. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.Kinetic control means that the forward aldoladditionreactionmust be significantly faster than the reverse retro-aldol reaction. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.Anadditionreactionis the opposite of an elimination reaction. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.This nucleophile reacts with the electrophilic alkene 3 to form 4 in a conjugateadditionreaction. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.The substrate of an electrophilicadditionreactionmust have a double bond or triple bond. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.As a class ofadditionreaction, cycloadditions permit carboncarbon bond formation without the use a nucleophile or electrophile. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.The same is true when an alkene reacts with water in anadditionreactionto form an alcohol which involve formation of carbocations. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.This is an electrophilicadditionreaction. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.Light converts elemental bromine into a bromine radical, which attacks the alkene in a radicaladditionreactionto a bromo-alkane radical; and now single bond rotation is possible. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.Once benzene is produced, the synthesis of more complex compounds occurs via simple substitution or addition reactions. From theCambridge English Corpus These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
| 随便看 |
|
英汉词典包含213609条英汉翻译词条，涵盖了常用英语单词及词组短语的翻译及用法，是英语学习的必备工具。