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Activation of C-F Bonds by Electrophilic Organosilicon Sites Supported on Sulfated Zirconia

Damien B Culver, Matthew P Conley

Angew Chem Int Ed Engl. 2018 Nov 5;57(45):14902-14905.

PMID: 30265766

Abstract:

The reaction of allyltriisopropylsilane with partially dehydroxylated sulfated zirconium oxide (SZO) forms surface organosilicon species. Solid-state NMR studies of the organosilicon functionalized SZO shows that electrophilic [TIPS][SZO] sites are present on the surface, in addition to less reactive TIPS-Ox and SiOx species. The electrophilic [TIPS][SZO] sites are strong Lewis acids from solid-state 31 P NMR analysis of triethylphosphine oxide (O=PEt3 ) contacted materials. [TIPS][SZO] is active in hydrodefluorination reactions in the presence of Et3 SiH.

Chemicals Related in the Paper:

Catalog Number Product Name Structure CAS Number Price
AP24400848 Allyltriisopropylsilane Allyltriisopropylsilane 24400-84-8 Price
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