(Pyrazol-1-ylmethyl)pyridine palladium complexes: Synthesis, molecular structures, and activation of small molecules

Stephen O. Ojwach; Ilia A. Guzei; J. Darkwa

doi:10.1016/j.jorganchem.2008.12.043

(Pyrazol-1-ylmethyl)pyridine palladium complexes: Synthesis, molecular structures, and activation of small molecules

Stephen O. Ojwach, Ilia A. Guzei, J. Darkwa

Chemical Sciences

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

22 Citations (Scopus)

Abstract

Reactions of 2-(3,5-dimethylpyrazol-1-ylmethyl)pyridine (L1) and 2-(3,5-di-tert-butylpyrazol-1-ylmethyl)pyridine (L2) with either [PdClMe(COD)] or [PdCl₂(COD)] gave the mononuclear palladium complexes [PdCl₂(L1)] (1), [PdClMe(L1)] (2) [PdCl₂(L2)] (3) and [PdClMe(L2)] (4) in good yields. All compounds were characterized by NMR spectrometry, mass spectrometry, elemental analyses and also by single crystal X-ray crystallography for complexes 1, 3, and 4. The reaction of 2 with NaBAr₄ in NCMe gave the salt, [[PdMeNCMe(L3)]BAr₄ (5), in good yield. This salt was used as a catalyst to oligomerize ethylene at high pressures to branched polyethylene, but catalytic activity was low. The reaction of 2 with SO₂ and CO formed the respective insertion products [PdClS(O)₂Me(L1)] (6) and [PdClC(O)Me(L1)] (7).

Original language	English
Pages (from-to)	1393-1399
Number of pages	7
Journal	Journal of Organometallic Chemistry
Volume	694
Issue number	9-10
DOIs	https://doi.org/10.1016/j.jorganchem.2008.12.043
Publication status	Published - 15 Apr 2009

Keywords

(Pyrazol-1-yl)pyridine palladium complexes
Ethylene polymerization
Insertion sulfur dioxide and carbon monoxide
Molecular structures
Synthesis

ASJC Scopus subject areas

Biochemistry
Physical and Theoretical Chemistry
Organic Chemistry
Inorganic Chemistry
Materials Chemistry

Access to Document

10.1016/j.jorganchem.2008.12.043

Cite this

@article{81551b3f3cc54af691212b3429274ea6,

title = "(Pyrazol-1-ylmethyl)pyridine palladium complexes: Synthesis, molecular structures, and activation of small molecules",

abstract = "Reactions of 2-(3,5-dimethylpyrazol-1-ylmethyl)pyridine (L1) and 2-(3,5-di-tert-butylpyrazol-1-ylmethyl)pyridine (L2) with either [PdClMe(COD)] or [PdCl2(COD)] gave the mononuclear palladium complexes [PdCl2(L1)] (1), [PdClMe(L1)] (2) [PdCl2(L2)] (3) and [PdClMe(L2)] (4) in good yields. All compounds were characterized by NMR spectrometry, mass spectrometry, elemental analyses and also by single crystal X-ray crystallography for complexes 1, 3, and 4. The reaction of 2 with NaBAr4 in NCMe gave the salt, [[PdMeNCMe(L3)]BAr4 (5), in good yield. This salt was used as a catalyst to oligomerize ethylene at high pressures to branched polyethylene, but catalytic activity was low. The reaction of 2 with SO2 and CO formed the respective insertion products [PdClS(O)2Me(L1)] (6) and [PdClC(O)Me(L1)] (7).",

keywords = "(Pyrazol-1-yl)pyridine palladium complexes, Ethylene polymerization, Insertion sulfur dioxide and carbon monoxide, Molecular structures, Synthesis",

author = "Ojwach, {Stephen O.} and Guzei, {Ilia A.} and J. Darkwa",

year = "2009",

month = apr,

day = "15",

doi = "10.1016/j.jorganchem.2008.12.043",

language = "English",

volume = "694",

pages = "1393--1399",

journal = "Journal of Organometallic Chemistry",

issn = "0022-328X",

publisher = "Elsevier",

number = "9-10",

}

TY - JOUR

T1 - (Pyrazol-1-ylmethyl)pyridine palladium complexes

T2 - Synthesis, molecular structures, and activation of small molecules

AU - Ojwach, Stephen O.

AU - Guzei, Ilia A.

AU - Darkwa, J.

PY - 2009/4/15

Y1 - 2009/4/15

N2 - Reactions of 2-(3,5-dimethylpyrazol-1-ylmethyl)pyridine (L1) and 2-(3,5-di-tert-butylpyrazol-1-ylmethyl)pyridine (L2) with either [PdClMe(COD)] or [PdCl2(COD)] gave the mononuclear palladium complexes [PdCl2(L1)] (1), [PdClMe(L1)] (2) [PdCl2(L2)] (3) and [PdClMe(L2)] (4) in good yields. All compounds were characterized by NMR spectrometry, mass spectrometry, elemental analyses and also by single crystal X-ray crystallography for complexes 1, 3, and 4. The reaction of 2 with NaBAr4 in NCMe gave the salt, [[PdMeNCMe(L3)]BAr4 (5), in good yield. This salt was used as a catalyst to oligomerize ethylene at high pressures to branched polyethylene, but catalytic activity was low. The reaction of 2 with SO2 and CO formed the respective insertion products [PdClS(O)2Me(L1)] (6) and [PdClC(O)Me(L1)] (7).

AB - Reactions of 2-(3,5-dimethylpyrazol-1-ylmethyl)pyridine (L1) and 2-(3,5-di-tert-butylpyrazol-1-ylmethyl)pyridine (L2) with either [PdClMe(COD)] or [PdCl2(COD)] gave the mononuclear palladium complexes [PdCl2(L1)] (1), [PdClMe(L1)] (2) [PdCl2(L2)] (3) and [PdClMe(L2)] (4) in good yields. All compounds were characterized by NMR spectrometry, mass spectrometry, elemental analyses and also by single crystal X-ray crystallography for complexes 1, 3, and 4. The reaction of 2 with NaBAr4 in NCMe gave the salt, [[PdMeNCMe(L3)]BAr4 (5), in good yield. This salt was used as a catalyst to oligomerize ethylene at high pressures to branched polyethylene, but catalytic activity was low. The reaction of 2 with SO2 and CO formed the respective insertion products [PdClS(O)2Me(L1)] (6) and [PdClC(O)Me(L1)] (7).

KW - (Pyrazol-1-yl)pyridine palladium complexes

KW - Ethylene polymerization

KW - Insertion sulfur dioxide and carbon monoxide

KW - Molecular structures

KW - Synthesis

UR - http://www.scopus.com/inward/record.url?scp=62849126082&partnerID=8YFLogxK

U2 - 10.1016/j.jorganchem.2008.12.043

DO - 10.1016/j.jorganchem.2008.12.043

M3 - Article

AN - SCOPUS:62849126082

SN - 0022-328X

VL - 694

SP - 1393

EP - 1399

JO - Journal of Organometallic Chemistry

JF - Journal of Organometallic Chemistry

IS - 9-10

ER -

(Pyrazol-1-ylmethyl)pyridine palladium complexes: Synthesis, molecular structures, and activation of small molecules

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this