Sulfonyl group: Difference between revisions
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|[[Tosyl chloride]] (''p''-toluenesulfonyl chloride)<br>CH<sub>3</sub>C<sub>6</sub>H<sub>4</sub>SO<sub>2</sub>Cl |
|[[Tosyl chloride]] (''p''-toluenesulfonyl chloride)<br>CH<sub>3</sub>C<sub>6</sub>H<sub>4</sub>SO<sub>2</sub>Cl |
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|Brosyl |
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|''p''-bromobenzenesulfonyl |
|''p''-bromobenzenesulfonyl |
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|Bs |
|Bs |
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|Nosyl |
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|2- or 4-nitrobenzenesulfonyl |
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|Ns |
|Ns |
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Revision as of 03:28, 24 December 2017
![](http://upload.wikimedia.org/wikipedia/commons/thumb/5/5d/Sulfone.png/150px-Sulfone.png)
A sulfonyl group can refer either to a functional group found primarily in sulfones or to a substituent obtained from a sulfonic acid by the removal of the hydroxyl group similarly to acyl groups. Sulfonyl groups can be written as having the general formula R-S(=O)2-R', where there are two double bonds between the sulfur and oxygen.
Sulfonyl groups can be reduced to the hydrocarbon with lithium aluminium hydride (LiAlH4).
In inorganic chemistry, when the group -S(=O)2- is not connected to any carbon atoms, it is referred to as sulfuryl.
Examples of sulfonyl group substituents
The names of sulfonyl groups typically end in -syl, such as:
Group name | Full name | Pseudoelement symbol | Example |
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Tosyl | p-toluenesulfonyl | Ts | Tosyl chloride (p-toluenesulfonyl chloride) CH3C6H4SO2Cl |
Brosyl | p-bromobenzenesulfonyl | Bs | |
Nosyl | 2- or 4-nitrobenzenesulfonyl | Ns | |
Mesyl | methanesulfonyl | Ms | Mesyl chloride (methanesulfonyl chloride) CH3SO2Cl. |
Triflyl | trifluoromethanesulfonyl | Tf | |
Tresyl | 2,2,2-trifluoroethyl-1-sulfonyl | ||
Dansyl | 5-(dimethylamino)naphthalene-1-sulfonyl | Ds | Dansyl chloride |