Fluorosulfonate
General chemical structure of a fluorosulfonate ester
Fluorosulfonate, in organic chemistry, is a functional group that has the chemical formula F-SO2-O-R, and typically is a very good leaving group. In inorganic chemistry, fluorosulfonate is the anion F-SO2-O−, the conjugated base of fluorosulfonic acid.
Organic (alkyl) fluorosulfonates are usually strong alkylation agents, similar to triflate esters (F3C-SO2-OR). But unlike the triflate group, the fluorosulfonate group is not stable against hydrolysis. Therefore, fluorosulfonate esters are less frequently used as alkylation agents than triflate esters.
See also
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