| 词汇 | alkyl-group |
| 释义 | BETA alkyl groupcollocation in Englishmeanings of alkyland groupThese words are often used together. Click on the links below to explore the meanings. alkyl noun[ C ] uk /ˈæl.kɪl/ us /ˈæl.kɪl/ a group of atoms that consist of an alkane that has had one hydrogen atom removed; often used before another noun in the name of ... See more at alkyl group noun uk /ɡruːp/ us /ɡruːp/ a number of people or things that are put together or considered as ... See more at group Examples of alkyl groupalkyl group First, compounds derived from tryptamine, or from ring-hydroxy tryptamines which have been substituted at the nitrogen atom of the side chain by an alkylgroup or groups. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 In primary (1) haloalkanes, the carbon that carries the halogen atom is only attached to one other alkylgroup. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Alkylation is a basic chemical process where an alkylgroup is added to another molecule. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The metal complex must have an empty (or vacant) site cis to the alkylgroup for this reaction to occur. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Alkylating agents are widely used in chemistry because the alkylgroup is probably the most common group encountered in organic molecules. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. R does not need to be an alkylgroup but can also be more complicated. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Subsequently, an alkylgroup from the adjacent carbon migrates to the carbocation center. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The alkylgroup undergoes 1,2 migration from the silicon to the oxygen atom to give an electron deficient silicon center. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. As these metals form square planar complexes, no vacant site cis to the alkylgroup can be formed. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In the latter case, competitive addition of the alkylgroup to the nitrile takes place. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It contains a compulsory carbonyl group and an alkylgroup. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The alkylgroup is unreactive and the chemical and biological properties are mainly due to the nitrite group. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The alkylgroup can be methyl, ethyl, propyl or isopropyl. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Using this reaction it is possible to remove a carboxylic acid moiety from an alkylgroup and replace it with other functional groups. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Oxidative addition is also needed in order for nucleophilic addition of an alkylgroup to occur. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. 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. |
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