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Reversible Oxidative Se−Se Coupling of Phosphine Selenides by Ph 3 Sb(OTf) 2
Author(s) -
Poller Maximilian J.,
Burford Neil,
Karaghiosoff Konstantin
Publication year - 2018
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.201704753
Subject(s) - chemistry , phosphine , cationic polymerization , oxidative addition , redox , reductive elimination , medicinal chemistry , oxidative phosphorylation , antimony , inorganic chemistry , stereochemistry , catalysis , polymer chemistry , organic chemistry , biochemistry
Salts of diphosphoniumdiselenide dications ([R 3 PSeSePR 3 ][OTf] 2 ) have been isolated from reactions of trialkylphosphine selenides with triphenylantimony bistriflate. The redox process is speculated to proceed via a cationic coordination complex [Ph 3 SbL 2 ][OTf] 2 (L=Me 3 PSe, i Pr 3 PSe), which is also formed in the reaction of [R 3 PSeSePR 3 ][OTf] 2 with Ph 3 Sb. The observations indicate that the reductive elimination of [R 3 PSeSePR 3 ] 2+ from [Ph 3 Sb(SePR 3 ) 2 ] 2+ is reversible through the oxidative addition of [R 3 PSeSePR 3 ] 2+ to Ph 3 Sb.