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Functionalized Fluorophosphonium Ions
Author(s) -
Olaru Marian,
Schröder Artem,
Albers Lena,
Duvinage Daniel,
Mebs Stefan,
Beckmann Jens
Publication year - 2019
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201902221
Subject(s) - protonation , endothermic process , ion , chemistry , medicinal chemistry , organic chemistry , adsorption
Efforts to prepare an elusive donor‐free phosphenium ion, [R 2 P] + , led us to synthesize functionalized fluorophosphonium cations of the type [R 2 P(F)X] + (X=SiEt 3 , H, F), which were obtained from the related neutral fluorophosphines R 2 PF and R 2 PF 3 upon protonation and reaction with solvated [Et 3 Si] + ions ( R =2,6‐Mes 2 C 6 H 3 ). The hypothetical reductive elimination of [R 2 P(F)SiEt 3 ] + and [R 2 P(F)H] + affording [R 2 P] + , Et 3 SiF and HF, respectively, was calculated to be endothermic by 40.1 and 190.6 kJ mol −1 .