Sulfonium

For weakly electrophilic alkyl halides, the reactions can be accelerated by the addition of silver tetrafluoroborate.

[5] Below are listed some other synthetic methods, among many:[5] Sulfonium ions with three different substituents are chiral owing to their pyramidal structure.

[3] The sulfonium (more specifically methioninium) species S-adenosylmethionine occurs widely in nature, where it is used as a source of the adenosoyl or methyl radicals.

[8][9] Other naturally-occurring sulfonium species are S-methylmethionine (methioninium) and the related dimethylsulfoniopropionate (DMSP).

[citation needed] Organic sulfides react with liquid bromine to give bromosulfonium bromides, i.e.:[13]

Structure of (CH 3 ) 3 S + . The C-S-C angles are 102° and C-S bond distance is 177 picometers. [ 1 ]
Dimethylsulfoniopropionate (DMSP), is found in marine phytoplankton and seaweeds . [ 4 ]
Structure of S -adenosylmethionine .
Structure of tris(dimethylamino)sulfonium difluorotrimethylsilicate .