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Formation of new larger ring cyclic triphosphenium ions in solution – A 31P NMR study

✍ Scribed by Rachel Bashforth; Alice J. Boyall; Keith B. Dillon; Philippa K. Monks; Jennifer C. Potts

Book ID: 113642192
Publisher: Elsevier Science
Year: 2011
Tongue: English
Weight: 450 KB
Volume: 376
Category: Article
ISSN: 0020-1693
DOI: 10.1016/j.ica.2011.06.044

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## Abstract The di‐ium dication formed by triflic acid protonation of the cyclic triphosphenium ion derived from 1,4‐bis‐diphenylphosphinobutane, (dppb), and P~3~(X = Br or Cl) decomposes via an acyclic dication bearing a PHX group; this intermediate is reduced by SnX~2~ in the presence of HX to y