An observable silene/silylene rearrangement in a cationic iridium complex

Authors
Klei, SR Tilley, TD Bergman, RG
Citation
Sr. Klei et al., An observable silene/silylene rearrangement in a cationic iridium complex, ORGANOMETAL, 20(15), 2001, pp. 3220-3222
Citations number
12
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
ORGANOMETALLICS
ISSN journal
02767333 → ACNP
Volume
20
Issue
15
Year of publication
2001
Pages
3220 - 3222
Database
ISI
SICI code
0276-7333(20010723)20:15<3220:AOSRIA>2.0.ZU;2-E
Abstract
The iridium complex Cp*(PMe3)Ir(Me)(SiMe2-OTf) (2) reacts with LiB(C6F5)(4) (Et2O)(2) to form a mixture of the silene complex [Cp*(PMe3)Ir(eta (2)-CH2S iMe2)(H)]-[B(C6F5)(4)] (3) and the base-stabilized silylene complex [Cp*(PM e3)(Me) (SiMe2(Et2O)][B(C6F5)](4)] (4). The silene complex 3 has been cryst allographically characterized. Addition of pyridine to this mixture affords Cp*(PMe3)-Ir(Me)(SiMe2(L)][B(C6F5)(4)] (5a, L = pyridine) in good yield, w hereas addition of CO or ethylene results in clean formation of CP*(PMe3)Ir (L) (SiMe3)][B(C6F5)(4]) (8a, L = CO; 8b, L = C2H4).