Perfluoroorganylxenonium(II) salts from reactions of XeF2 or [FXe][SbF6] with selected perfluorinated alk-1-yn-1-yl- and alk-1-en-1-yltrifluoroborate salts in aHF

Autor: Hermann-Josef Frohn, Vadim V. Bardin
Rok vydání: 2012
Předmět:
Zdroj: Journal of Fluorine Chemistry. 138:28-33
ISSN: 0022-1139
DOI: 10.1016/j.jfluchem.2012.03.014
Popis: Xenon difluoride reacted with alkynylborate salts, K[R F C CBF 3 ], in anhydrous HF (aHF) to give alkynylxenonium salts, [R F C CXe][BF 4 ] (R F = CF 3 , C 3 F 7 , (CF 3 ) 2 CF), in 50–55% yield. Both [FXe][SbF 6 ] and K[C 3 F 7 C CBF 3 ] formed the [C 3 F 7 C CXe] + salt in aHF. In the reaction of XeF 2 with the alkenylborate salt, K[CF 2 C(CF 3 )BF 3 ], the competitive hydrodeboration reaction (formation of CF 2 C(CF 3 )H in 85% yield) exceeded the xenodeboration reaction (formation of the xenonium salt [CF 2 C(CF 3 )Xe][BF 4 ] in 15% yield only). K[4-BF 3 C 5 F 4 N] did not react with XeF 2 in aHF, but underwent fluorine addition in the presence of AsF 5 .
Databáze: OpenAIRE