Sulfonyl group

[1]: 1470–1476 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.

[1]: 53 [2] Sulfonyl groups can be reduced to the sulfide with diisobutylaluminium hydride (DIBALH).

Lithium aluminium hydride (LiAlH4) reduces some but not all sulfones to sulfides.

[1]: 1851 In inorganic chemistry, when the group −S(=O)2− is not connected to any carbon atoms, it is referred to as sulfuryl.

[3] The names of sulfonyl groups typically end in -syl, such as:[1]: 497