Carboxylation of the Ni-Me Bond in an Electron-Rich Unsymmetrical PCN Pincer Nickel Complex

Abdelrazek H. Mousa; Alexey V. Polukeev; Josefine Hansson; Ola F. Wendt

doi:10.1021/acs.organomet.9b00817

Carboxylation of the Ni-Me Bond in an Electron-Rich Unsymmetrical PCN Pincer Nickel Complex

Abdelrazek H. Mousa, Alexey V. Polukeev, Josefine Hansson, Ola F. Wendt^*

^*Corresponding author for this work

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

22 Scopus citations

Abstract

The synthesis of a new unsymmetrical PCN ligand bearing tert-butyl groups on the phosphorus atom and isopropyl groups on the nitrogen donor atom is presented. It reacts with the commercially available Ni(DME)Br₂ precursor to offer the corresponding ^t-BuPCN^i-Pr pincer nickel bromide complex 1 together with a paramagnetic species, which was characterized as a tetrahedral nickel complex. Complex 1 reacts with MeMgCl to give the corresponding methyl complex 3. Carboxylation of complex 3 using 4 atm of CO₂ gave the PCN nickel acetate complex 4 under mild reaction conditions comparable to those for the corresponding palladium complexes with PCP ligands.

Original language	English
Pages (from-to)	1553-1560
Number of pages	8
Journal	Organometallics
Volume	39
Issue number	9
DOIs	https://doi.org/10.1021/acs.organomet.9b00817
State	Published - 11 May 2020
Externally published	Yes

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Publisher Copyright:
Copyright © 2020 American Chemical Society.

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Organic Chemistry
Inorganic Chemistry

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title = "Carboxylation of the Ni-Me Bond in an Electron-Rich Unsymmetrical PCN Pincer Nickel Complex",

abstract = "The synthesis of a new unsymmetrical PCN ligand bearing tert-butyl groups on the phosphorus atom and isopropyl groups on the nitrogen donor atom is presented. It reacts with the commercially available Ni(DME)Br2 precursor to offer the corresponding t-BuPCNi-Pr pincer nickel bromide complex 1 together with a paramagnetic species, which was characterized as a tetrahedral nickel complex. Complex 1 reacts with MeMgCl to give the corresponding methyl complex 3. Carboxylation of complex 3 using 4 atm of CO2 gave the PCN nickel acetate complex 4 under mild reaction conditions comparable to those for the corresponding palladium complexes with PCP ligands.",

author = "Mousa, \{Abdelrazek H.\} and Polukeev, \{Alexey V.\} and Josefine Hansson and Wendt, \{Ola F.\}",

note = "Publisher Copyright: Copyright {\textcopyright} 2020 American Chemical Society.",

year = "2020",

month = may,

day = "11",

doi = "10.1021/acs.organomet.9b00817",

language = "English",

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AU - Mousa, Abdelrazek H.

AU - Polukeev, Alexey V.

AU - Hansson, Josefine

AU - Wendt, Ola F.

PY - 2020/5/11

Y1 - 2020/5/11

N2 - The synthesis of a new unsymmetrical PCN ligand bearing tert-butyl groups on the phosphorus atom and isopropyl groups on the nitrogen donor atom is presented. It reacts with the commercially available Ni(DME)Br2 precursor to offer the corresponding t-BuPCNi-Pr pincer nickel bromide complex 1 together with a paramagnetic species, which was characterized as a tetrahedral nickel complex. Complex 1 reacts with MeMgCl to give the corresponding methyl complex 3. Carboxylation of complex 3 using 4 atm of CO2 gave the PCN nickel acetate complex 4 under mild reaction conditions comparable to those for the corresponding palladium complexes with PCP ligands.

AB - The synthesis of a new unsymmetrical PCN ligand bearing tert-butyl groups on the phosphorus atom and isopropyl groups on the nitrogen donor atom is presented. It reacts with the commercially available Ni(DME)Br2 precursor to offer the corresponding t-BuPCNi-Pr pincer nickel bromide complex 1 together with a paramagnetic species, which was characterized as a tetrahedral nickel complex. Complex 1 reacts with MeMgCl to give the corresponding methyl complex 3. Carboxylation of complex 3 using 4 atm of CO2 gave the PCN nickel acetate complex 4 under mild reaction conditions comparable to those for the corresponding palladium complexes with PCP ligands.

UR - https://www.scopus.com/pages/publications/85083297512

U2 - 10.1021/acs.organomet.9b00817

DO - 10.1021/acs.organomet.9b00817

M3 - Article

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SN - 0276-7333

VL - 39

SP - 1553

EP - 1560

JO - Organometallics

JF - Organometallics

IS - 9

ER -

Carboxylation of the Ni-Me Bond in an Electron-Rich Unsymmetrical PCN Pincer Nickel Complex

Abstract

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ASJC Scopus subject areas

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