Faculty Publications

Title

Selective dialkylation of a doubly linked dicyclopentadiene ligand and the ensuing ruthenium complexes

Document Type

Article

Journal/Book/Conference Title

Organometallics

Volume

31

Issue

1

First Page

261

Last Page

267

Abstract

The selective alkylation (Me or tert-butyl) of a doubly linked dicyclopentadiene ligand is presented. The reaction of (C 5H 3(t-Bu)) 2(CMe 2) 2 (4a,b), the di-tert-butyl-substituted ligand, with RuCl 33H 2O in MeOH at 140 °C for 15 min, followed by heating in CHCl 3, gave the chloro-bridged complex cis-{(ν 5-C 5H 2(t-Bu)) 2(CMe 2) 2}Ru 2(μ-Cl) 2Cl 2 (5) in 28% yield. Reduction of 5 with Zn in MeCN gave the chloro-bridged tetrakis(acetonitrile) complex cis-[{(ν 5- C 5H 2(t-Bu)) 2(CMe 2) 2}-Ru 2(MeCN) 4(μ-Cl)] + (6) in 62% yield. Addition of AgOTf to 6 in MeCN removed the bridging chloro ligand and gave [cis-{(ν 5-C 5H 2(t-Bu))2(CMe 2) 2}Ru 2(MeCN) 6][OTf] 2 (7) in 38% yield. The X-ray crystal structures of 5 and 6 are reported. © 2011 American Chemical Society.

Original Publication Date

1-9-2012

DOI of published version

10.1021/om200854n

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