In:
Angewandte Chemie International Edition, Wiley, Vol. 61, No. 42 ( 2022-10-17)
Abstract:
Fluorinated group 16 moieties are attractive building blocks in synthetic chemistry but only few synthetic methods are available to prepare them. Herein, we report a new oxidative fluorination reagent capable of stabilizing reactive fluorinated anions. It consists of an SF 5 − anion and a chemically inert phosphonium cation and is exceptionally thermally stable. Accordingly, it was used to generate the SeF 5 − and TeF 5 − anions from the elemental chalcogens and to prepare the unknown tetrafluoro(phenyl)‐λ 5 ‐selenate PhSeF 4 − and ‐tellurate PhTeF 4 − from the corresponding diphenyl dichalcogenides. In addition, we show that further derivatization of [PhTeF 4 ] − by oxidation to trans ‐PhTeF 4 O − and subsequent alkylation gives access to a new class of trans ‐(alkoxy)(phenyl)tetrafluoro‐λ 6 ‐tellanes ( trans ‐PhTeF 4 OR), thus providing an approach to introduce the functional group into organic molecules.
Type of Medium:
Online Resource
ISSN:
1433-7851
,
1521-3773
DOI:
10.1002/anie.202209067
Language:
English
Publisher:
Wiley
Publication Date:
2022
detail.hit.zdb_id:
2011836-3
detail.hit.zdb_id:
123227-7