Just Add Water: A New Fluorous Capping Reagent for Facile Purification of Peptides Synthesized on the Solid Phase
作者:Vittorio Montanari、Krishna Kumar
DOI:10.1021/ja0479033
日期:2004.8.1
A novel fluorouscapping reagent is introduced to facilitate purification during solid-phasepeptidesynthesis (SPPS). Reagent 1 is a trivalent iodonium salt that reacts vigorously with free amines to deliver a long-chain fluoroalkyl group. It has been used to tag all unreacted amines following the peptide coupling step in SPPS. The resulting fluoroalkylated amine is no longer able to couple in further
Syntheses of (1,1-dihydroperfluoroalkyl)aryliodonium triflates and their analogues
作者:Teruo Umemoto、Yoshihiko Gotoh
DOI:10.1016/s0022-1139(00)81146-x
日期:1985.6
l-Dihydroperfluoroalkyl)phenyl- and -p-fluorophenyliodonium triflates 2 and 3 were synthesized by the reaction of l-bis(trifluoroacetoxy)iodo-1,l-dihydroperfluoroalkanes 1 with triflic acid and benzene or fluorobenzene in 1,1,2-trichlorotrifluoroethane. The use of fluorosulfonicacid and sulfuric acid instead of triflic acid afforded (1,l-dihydroperfluoroalkyl) phenyliodonium fluorosulfonate 4 and sulfate 5, respectively