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.
Examples of sulfonyl group substituents
The names of sulfonyl groups typically end in -syl, such as:
|Group name||Full name||Abbreviation||Example|
|Tosyl||p-toluenesulfonyl||Ts||Tosyl chloride (p-toluenesulfonyl chloride)
|Nosyl||2- or 4-nitrobenzenesulfonyl||Ns|
|Mesyl||methanesulfonyl||Ms||Mesyl chloride (methanesulfonyl chloride)
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