Cationic and neutral palladium(II) methyl complexes of di-N-heterocyclic carbenes

R E  Douthwaite; M L H  Green; P J  Silcock; P T  Gomes

doi:10.1039/b110261n

Cationic and neutral palladium(II) methyl complexes of di-N-heterocyclic carbenes

R E Douthwaite, M L H Green, P J Silcock, P T Gomes

Chemistry

Research output: Contribution to journal › Article › peer-review

Abstract

Cationic and neutral methyl complexes of Pd(II) incorporating di-N-heterocyclic carbenes, (CCmeth)-C-tBa and (CCeth)-C-tBu (where (CCmeth)-C-tBu = 1, 1'-methylene-3,3'-di-tert-butyldiimidazol-2,2'-diylidene and (CCeth)-C-tBu = 1,2-ethylene-3,3'-di-tert-butyldiimidazol-2,2'-diylidene), have been prepared. The complexes [Pd((CCmeth)-C-tBu)Me-2] (1) and [Pd((CCeth)-C-tBu)Me-2] (2) have been isolated and 2 has been characterised by single crystal X-ray diffraction. When I and 2 are dissolved in deuterated methanol in the presence of pyridine or bipyridine the four coordinate cations [Pd((CCmeth)-C-tBu)MC(py)(+) (3), [Pd((CCeth)-C-tBu)Me(py)(+) (4), [Pd(C-tBu(D)-eta-C-meth)Me(eta(2)-bipy)](-) (5), and [Pd(C-tBu(D)-eta-C-eth)Me(eta(2)-bip)(+) (6). are observed spectroscopically.

Original language	English
Pages (from-to)	1386-1390
Number of pages	5
Journal	JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS
Issue number	7
DOIs	https://doi.org/10.1039/b110261n
Publication status	Published - 7 Apr 2002

Keywords

TRANSITION-METAL-COMPLEXES
C COUPLING REACTIONS
HECK-TYPE REACTIONS
OLEFIN METATHESIS
HOMOGENEOUS CATALYSIS
ARYL CHLORIDES
HYDROSILYLATION CATALYSTS
LIGANDS
PRECURSORS
BEARING

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10.1039/b110261n

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@article{3c181313fa8343bc9eb68097fb5afde5,

title = "Cationic and neutral palladium(II) methyl complexes of di-N-heterocyclic carbenes",

abstract = "Cationic and neutral methyl complexes of Pd(II) incorporating di-N-heterocyclic carbenes, (CCmeth)-C-tBa and (CCeth)-C-tBu (where (CCmeth)-C-tBu = 1, 1'-methylene-3,3'-di-tert-butyldiimidazol-2,2'-diylidene and (CCeth)-C-tBu = 1,2-ethylene-3,3'-di-tert-butyldiimidazol-2,2'-diylidene), have been prepared. The complexes [Pd((CCmeth)-C-tBu)Me-2] (1) and [Pd((CCeth)-C-tBu)Me-2] (2) have been isolated and 2 has been characterised by single crystal X-ray diffraction. When I and 2 are dissolved in deuterated methanol in the presence of pyridine or bipyridine the four coordinate cations [Pd((CCmeth)-C-tBu)MC(py)(+) (3), [Pd((CCeth)-C-tBu)Me(py)(+) (4), [Pd(C-tBu(D)-eta-C-meth)Me(eta(2)-bipy)](-) (5), and [Pd(C-tBu(D)-eta-C-eth)Me(eta(2)-bip)(+) (6). are observed spectroscopically.",

keywords = "TRANSITION-METAL-COMPLEXES, C COUPLING REACTIONS, HECK-TYPE REACTIONS, OLEFIN METATHESIS, HOMOGENEOUS CATALYSIS, ARYL CHLORIDES, HYDROSILYLATION CATALYSTS, LIGANDS, PRECURSORS, BEARING",

author = "Douthwaite, {R E} and Green, {M L H} and Silcock, {P J} and Gomes, {P T}",

year = "2002",

month = apr,

day = "7",

doi = "10.1039/b110261n",

language = "English",

pages = "1386--1390",

journal = "JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS",

issn = "1472-7773",

publisher = "The Royal Society of Chemistry",

number = "7",

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TY - JOUR

T1 - Cationic and neutral palladium(II) methyl complexes of di-N-heterocyclic carbenes

AU - Douthwaite, R E

AU - Green, M L H

AU - Silcock, P J

AU - Gomes, P T

PY - 2002/4/7

Y1 - 2002/4/7

N2 - Cationic and neutral methyl complexes of Pd(II) incorporating di-N-heterocyclic carbenes, (CCmeth)-C-tBa and (CCeth)-C-tBu (where (CCmeth)-C-tBu = 1, 1'-methylene-3,3'-di-tert-butyldiimidazol-2,2'-diylidene and (CCeth)-C-tBu = 1,2-ethylene-3,3'-di-tert-butyldiimidazol-2,2'-diylidene), have been prepared. The complexes [Pd((CCmeth)-C-tBu)Me-2] (1) and [Pd((CCeth)-C-tBu)Me-2] (2) have been isolated and 2 has been characterised by single crystal X-ray diffraction. When I and 2 are dissolved in deuterated methanol in the presence of pyridine or bipyridine the four coordinate cations [Pd((CCmeth)-C-tBu)MC(py)(+) (3), [Pd((CCeth)-C-tBu)Me(py)(+) (4), [Pd(C-tBu(D)-eta-C-meth)Me(eta(2)-bipy)](-) (5), and [Pd(C-tBu(D)-eta-C-eth)Me(eta(2)-bip)(+) (6). are observed spectroscopically.

AB - Cationic and neutral methyl complexes of Pd(II) incorporating di-N-heterocyclic carbenes, (CCmeth)-C-tBa and (CCeth)-C-tBu (where (CCmeth)-C-tBu = 1, 1'-methylene-3,3'-di-tert-butyldiimidazol-2,2'-diylidene and (CCeth)-C-tBu = 1,2-ethylene-3,3'-di-tert-butyldiimidazol-2,2'-diylidene), have been prepared. The complexes [Pd((CCmeth)-C-tBu)Me-2] (1) and [Pd((CCeth)-C-tBu)Me-2] (2) have been isolated and 2 has been characterised by single crystal X-ray diffraction. When I and 2 are dissolved in deuterated methanol in the presence of pyridine or bipyridine the four coordinate cations [Pd((CCmeth)-C-tBu)MC(py)(+) (3), [Pd((CCeth)-C-tBu)Me(py)(+) (4), [Pd(C-tBu(D)-eta-C-meth)Me(eta(2)-bipy)](-) (5), and [Pd(C-tBu(D)-eta-C-eth)Me(eta(2)-bip)(+) (6). are observed spectroscopically.

KW - TRANSITION-METAL-COMPLEXES

KW - C COUPLING REACTIONS

KW - HECK-TYPE REACTIONS

KW - OLEFIN METATHESIS

KW - HOMOGENEOUS CATALYSIS

KW - ARYL CHLORIDES

KW - HYDROSILYLATION CATALYSTS

KW - LIGANDS

KW - PRECURSORS

KW - BEARING

U2 - 10.1039/b110261n

DO - 10.1039/b110261n

M3 - Article

SN - 1472-7773

SP - 1386

EP - 1390

JO - JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS

JF - JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS

IS - 7

ER -