Neutral and cationic fluorinated N-heterocyclic carbene complexes of rhodium and iridium

被引：56

作者：

Burling, Suzanne ^{[1
]}

Mahon, Mary F. ^{[1
]}

Reade, Steven P. ^{[1
]}

Whittlesey, Michael K. ^{[1
]}

机构：

[1] Univ Bath, Dept Chem, Bath BA2 7AY, Avon, England

来源：

ORGANOMETALLICS | 2006年 / 25卷 / 15期

基金：

英国工程与自然科学研究理事会;

关键词：

D O I：

10.1021/om060324h

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Transmetalation of the structurally characterized silver N-heterocyclic carbene (NHC) salt [Ag(IpFMe)(2)](+) (1, IpFMe = 1-pentafluorobenzyl-3-methylimidazol-2-ylidene) to [Rh(COD)Cl](2) affords Rh(IpFMe)-( COD)Cl (2). The analogous neutral iridium complex, Ir(IpFMe)(COD)Br (5), may be formed upon elimination of MeOH from [Ir(COD)(OMe)](2) in the reaction with 1-pentafluorobenzyl-3-methylimidazolium bromide. Thermolysis of [ Ag( IpFMe) 2]+ with either 5 or [ Ir( COD) Cl] 2 yields the cationic bis-NHC complex [Ir(IpFMe)(2)(COD)](AgX2)(6, X = Cl, Br), which exists as a mixture of conformers in solution. Addition of CO or AgOTf to 2 gives Rh(IpFMe)(CO)(2)Cl (3) and Rh(IpFMe)(COD)(OTf) (4), respectively. The molecular structures of compounds 1-6 have been determined by X-ray crystallography.

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页码：3761 / 3767

页数：7

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共 85 条

[1] Rhodium catalysed hydroformylation of alkenes using highly fluorophilic phosphines [J].

Adams, DJ ;

Bennett, JA ;

Cole-Hamilton, DJ ;

Hope, EG ;

Hopewell, J ;

Kight, J ;

Pogorzelec, P ;

Stuart, AM .

DALTON TRANSACTIONS, 2005, (24) :3862-3867

[2] Hydroformylation in fluorous solvents [J].

Adams, DJ ;

Cole-Hamilton, DJ ;

Hope, EG ;

Pogorzelec, PJ ;

Stuart, AM .

JOURNAL OF ORGANOMETALLIC CHEMISTRY, 2004, 689 (08) :1413-1417

[3] Imidazo[1,5-a]pyridine:: A versatile architecture for stable N-heterocyclic carbenes [J].

Alcarazo, M ;

Roseblade, SJ ;

Cowley, AR ;

Fernández, R ;

Brown, JM ;

Lassaletta, JM .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2005, 127 (10) :3290-3291

[4] 1,3-bis(N,N-dialkylamino)imidazolin-2-ylidenes:: Synthesis and reactivity of a new family of stable N-heterocyclic carbenes [J].

Alcarazo, M ;

Roseblade, SJ ;

Alonso, E ;

Fernández, R ;

Alvarez, E ;

Lahoz, FJ ;

Lassaletta, JM .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2004, 126 (41) :13242-13243

[5] Synthesis and characterization of a free phenylene bis(N-heterocyclic carbene) and its di-Rh complex: Catalytic activity of the di-Rh and CCC-NHC Rh pincer complexes in intermolecular hydrosilylation of alkynes [J].

Andavan, GTS ;

Bauer, EB ;

Letko, CS ;

Hollis, TK ;

Tham, FS .

JOURNAL OF ORGANOMETALLIC CHEMISTRY, 2005, 690 (24-25) :5938-5947

[6] Synthesis and structure of N-heterocyclic carbene complexes of rhodium and iridium derived from an imidazolium-linked cyclophane [J].

Baker, MV ;

Brayshaw, SK ;

Skelton, BW ;

White, AH ;

Williams, CC .

JOURNAL OF ORGANOMETALLIC CHEMISTRY, 2005, 690 (09) :2312-2322

[7] Constructing a stable carbene with a novel topology and electronic framework [J].

Bazinet, P ;

Yap, GPA ;

Richeson, DS .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2003, 125 (44) :13314-13315

[8] Rhodium-NHC-complexes as potent catalysts in the hydroformylation of 1-octene [J].

Bortenschlager, M ;

Schütz, J ;

von Preysing, D ;

Nuyken, O ;

Herrmann, WA ;

Weberskirch, R .

JOURNAL OF ORGANOMETALLIC CHEMISTRY, 2005, 690 (24-25) :6233-6237

[9] Mononuclear rhodium(I) complexes with chelating N-heterocyclic carbene ligands -: Catalytic activity for intramolecular hydroamination [J].

Burling, S ;

Field, LD ;

Li, HL ;

Messerle, BA ;

Turner, P .

EUROPEAN JOURNAL OF INORGANIC CHEMISTRY, 2003, (17) :3179-3184

[10] Easy activation of two C-H bonds of an N-heterocyclic carbene N-methyl group [J].

Cabeza, JA ;

del Río, I ;

Miguel, D ;

Sánchez-Vega, MG .

CHEMICAL COMMUNICATIONS, 2005, (31) :3956-3958

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