Coordinatively unsaturated 16-electron ruthenium allenylidene complexes: Synthetic, structural, and catalytic studies

H J  Schanz; L  Jafarpour; E D  Stevens; Steven Patrick Nolan

doi:10.1021/om9906316

Coordinatively unsaturated 16-electron ruthenium allenylidene complexes: Synthetic, structural, and catalytic studies

H J Schanz, L Jafarpour, E D Stevens, Steven Patrick Nolan

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

Abstract

The one-pot reactions of [(p-cymene)RuCl2](2) (1) or (PPh3)(4)RuCl2 (2) with 2 equiv of PCy3 and 3,3-diphenylpropyn-3-ol afford the novel 16-electron ruthenium allenylidene complex (PCy3)(2)Cl2Ru(=C=C=CPh2) (3) in high yields. Substitution of one PCy3 ligand in 3 for one nucleophilic carbene ligand, IMes [1,3-bis(2,4,6-trimethylphenyl)imidazol-2-ylidene], affords the novel complex (PCy3)(IMes)Cl2Ru(=C=C=CPh2) (4). Single-crystal X-ray structure analyses of complexes 3 and 4 were performed. Thermal stability of complexes 3 and 4 was investigated, and their catalytic activity promoting ring-closing metathesis (RCM) of various substrates was tested.

Original language	English
Pages (from-to)	5187-5190
Number of pages	4
Journal	Organometallics
Volume	18
Issue number	24
DOIs	https://doi.org/10.1021/om9906316
Publication status	Published - 22 Nov 1999

Keywords

OPENING METATHESIS POLYMERIZATION
RAY CRYSTAL-STRUCTURE
STRAIN CYCLIC OLEFINS
CARBENES
RUCL2(=CHR')(PR(3))(2)
DERIVATIVES
NORBORNENE
REACTIVITY
PHOSPHINE
1-ALKYNES

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@article{07a948942d214f83ae1d7a1f263db8a2,

title = "Coordinatively unsaturated 16-electron ruthenium allenylidene complexes: Synthetic, structural, and catalytic studies",

abstract = "The one-pot reactions of [(p-cymene)RuCl2](2) (1) or (PPh3)(4)RuCl2 (2) with 2 equiv of PCy3 and 3,3-diphenylpropyn-3-ol afford the novel 16-electron ruthenium allenylidene complex (PCy3)(2)Cl2Ru(=C=C=CPh2) (3) in high yields. Substitution of one PCy3 ligand in 3 for one nucleophilic carbene ligand, IMes [1,3-bis(2,4,6-trimethylphenyl)imidazol-2-ylidene], affords the novel complex (PCy3)(IMes)Cl2Ru(=C=C=CPh2) (4). Single-crystal X-ray structure analyses of complexes 3 and 4 were performed. Thermal stability of complexes 3 and 4 was investigated, and their catalytic activity promoting ring-closing metathesis (RCM) of various substrates was tested.",

keywords = "OPENING METATHESIS POLYMERIZATION, RAY CRYSTAL-STRUCTURE, STRAIN CYCLIC OLEFINS, CARBENES, RUCL2(=CHR')(PR(3))(2), DERIVATIVES, NORBORNENE, REACTIVITY, PHOSPHINE, 1-ALKYNES",

author = "Schanz, {H J} and L Jafarpour and Stevens, {E D} and Nolan, {Steven Patrick}",

year = "1999",

month = nov,

day = "22",

doi = "10.1021/om9906316",

language = "English",

volume = "18",

pages = "5187--5190",

journal = "Organometallics",

issn = "0276-7333",

publisher = "American Chemical Society (ACS)",

number = "24",

}

TY - JOUR

T1 - Coordinatively unsaturated 16-electron ruthenium allenylidene complexes

T2 - Synthetic, structural, and catalytic studies

AU - Schanz, H J

AU - Jafarpour, L

AU - Stevens, E D

AU - Nolan, Steven Patrick

PY - 1999/11/22

Y1 - 1999/11/22

N2 - The one-pot reactions of [(p-cymene)RuCl2](2) (1) or (PPh3)(4)RuCl2 (2) with 2 equiv of PCy3 and 3,3-diphenylpropyn-3-ol afford the novel 16-electron ruthenium allenylidene complex (PCy3)(2)Cl2Ru(=C=C=CPh2) (3) in high yields. Substitution of one PCy3 ligand in 3 for one nucleophilic carbene ligand, IMes [1,3-bis(2,4,6-trimethylphenyl)imidazol-2-ylidene], affords the novel complex (PCy3)(IMes)Cl2Ru(=C=C=CPh2) (4). Single-crystal X-ray structure analyses of complexes 3 and 4 were performed. Thermal stability of complexes 3 and 4 was investigated, and their catalytic activity promoting ring-closing metathesis (RCM) of various substrates was tested.

AB - The one-pot reactions of [(p-cymene)RuCl2](2) (1) or (PPh3)(4)RuCl2 (2) with 2 equiv of PCy3 and 3,3-diphenylpropyn-3-ol afford the novel 16-electron ruthenium allenylidene complex (PCy3)(2)Cl2Ru(=C=C=CPh2) (3) in high yields. Substitution of one PCy3 ligand in 3 for one nucleophilic carbene ligand, IMes [1,3-bis(2,4,6-trimethylphenyl)imidazol-2-ylidene], affords the novel complex (PCy3)(IMes)Cl2Ru(=C=C=CPh2) (4). Single-crystal X-ray structure analyses of complexes 3 and 4 were performed. Thermal stability of complexes 3 and 4 was investigated, and their catalytic activity promoting ring-closing metathesis (RCM) of various substrates was tested.

KW - OPENING METATHESIS POLYMERIZATION

KW - RAY CRYSTAL-STRUCTURE

KW - STRAIN CYCLIC OLEFINS

KW - CARBENES

KW - RUCL2(=CHR')(PR(3))(2)

KW - DERIVATIVES

KW - NORBORNENE

KW - REACTIVITY

KW - PHOSPHINE

KW - 1-ALKYNES

U2 - 10.1021/om9906316

DO - 10.1021/om9906316

M3 - Article

SN - 0276-7333

VL - 18

SP - 5187

EP - 5190

JO - Organometallics

JF - Organometallics

IS - 24

ER -

Coordinatively unsaturated 16-electron ruthenium allenylidene complexes: Synthetic, structural, and catalytic studies

Abstract

Keywords

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