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Pentamethylcyclopentadienyl‐substituiertes Selenadiphosphiran und Selenatriphosphetan: Synthese, Struktur, Dynamik und einige Reaktionen
Author(s) -
Jutzi Peter,
Brusdeilins Norbert,
Stammler HansGeorg,
Neumann Beate
Publication year - 1994
Publication title -
chemische berichte
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 0009-2940
DOI - 10.1002/cber.19941270606
Subject(s) - chemistry , selenium , chromium , bicyclic molecule , tris , medicinal chemistry , stereochemistry , organic chemistry , biochemistry
Pentamethylcyclopentadienyl‐Substituted Selenadiphosphirane and Selenatriphosphetane: Synthesis, Structure, Dynamic, and Some Reactions Herrn Prof. R. Schmutzler zum 60. Geburtstag gewidmet. 1,2,3‐Tris(pentamethylcyclopentadienyl)cyclotriphosphane (1) reacts with selenium to form the insertion product 2,3,4‐tris(pentamethylcyclopentadienyl)selenatriphosphetane (2) , which is trapped as the selenium‐coordinated pentacarbonylchromium complex 4 . Compound 4 is the first isolated selenatriphosphetane complex. Reaction of 2 with selenium yields 2,3‐bis(pentamethylcyclopentadienyl)selenadiphosphirane (3) . 3 replaces thf of Cr(CO) 5 thf to give the chromium complex 5 . The reaction of 3 with K[Fe(CO) 2 Cp*] leads to the substitution product 6 and the bicyclic phosphane 7 . The X‐ray structures of 3 and 4 are presented. The dynamic behavior of 3–6 is discussed.