Published in:
Angewandte Chemie, 129 (2017) 37, Seite 11355-11360
Language:
English
DOI:
10.1002/ange.201701160
ISSN:
0044-8249;
1521-3757
Origination:
Footnote:
Description:
AbstractThe SuFEx‐based polycondensation between bisalkylsulfonyl fluorides (AA monomers) and bisphenol bis(t‐butyldimethylsilyl) ethers (BB monomers) using [Ph3P=N−PPh3]+[HF2]− as the catalyst is described. The AA monomers were prepared via the highly reliable Michael addition of ethenesulfonyl fluoride and amines/anilines while the BB monomers were obtained from silylation of bisphenols by t‐butyldimethylsilyl chloride. With these reactions, a remarkable diversity of monomeric building blocks was achieved by exploiting readily available amines, anilines, and bisphenols as starting materials. The SuFEx‐based polysulfonate formation reaction exhibited excellent efficiency and functional group tolerance, producing polysulfonates with a variety of side chain functionalities in >99 % conversion within 10 min to 1 h. When bearing an orthogonal group on the side chain, the polysulfonates can be further functionalized via click‐chemistry‐based post‐polymerization modification.