Synthesis of neutral dimethylaluminum complexes bearing imino-phenoxide ligands

Amer El-Batta

doi:10.14233/ajchem.2013.15642

Synthesis of neutral dimethylaluminum complexes bearing imino-phenoxide ligands

Amer El-Batta^*

^*Corresponding author for this work

King Fahd University of Petroleum & Minerals

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

Abstract

Synthesis of neutral dimethylaluminum complexes ligated by bidentate N,O salicylaldimine ligands is reported. Treatment of the iminophenoxide ligands 3-R-2-(OH)C₆H₃CH=N(2,6-iPr₂C₆H ₃) [R = 9-anthracenyl (1a) and 1-naphthyl (1b)] with Al(CH ₃)₃ in toluene affords the corresponding yellow dimethylaluminum compounds {3-R-2-(OH)C₆H₃CH=N(2,6- iPr₂C₆H₃)}Al(CH₃)₂ [R = 9-anthracenyl (2a) and 1-naphthyl (2b)] in high yields. Reactions cleanly proceed by protodealumination of the Al-CH₃ bond with concomitant elimination of methane. Toluene solutions of 2a-b, when activated with 1 equivalent of B(C₆F₅)₃, polymerized ethylene to solid polyethylene with low activity.

Original language	English
Pages (from-to)	8785-8787
Number of pages	3
Journal	Asian Journal of Chemistry
Volume	25
Issue number	15
DOIs	https://doi.org/10.14233/ajchem.2013.15642
State	Published - 2013

Keywords

Aluminum
Complex
Ligand
Organometallic
Phenoxy-imine
Salicylaldimine

ASJC Scopus subject areas

General Chemistry

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10.14233/ajchem.2013.15642

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@article{78d38efa81ec423a8f6dd0def5852b95,

title = "Synthesis of neutral dimethylaluminum complexes bearing imino-phenoxide ligands",

abstract = "Synthesis of neutral dimethylaluminum complexes ligated by bidentate N,O salicylaldimine ligands is reported. Treatment of the iminophenoxide ligands 3-R-2-(OH)C6H3CH=N(2,6-iPr2C6H 3) [R = 9-anthracenyl (1a) and 1-naphthyl (1b)] with Al(CH 3)3 in toluene affords the corresponding yellow dimethylaluminum compounds \{3-R-2-(OH)C6H3CH=N(2,6- iPr2C6H3)\}Al(CH3)2 [R = 9-anthracenyl (2a) and 1-naphthyl (2b)] in high yields. Reactions cleanly proceed by protodealumination of the Al-CH3 bond with concomitant elimination of methane. Toluene solutions of 2a-b, when activated with 1 equivalent of B(C6F5)3, polymerized ethylene to solid polyethylene with low activity.",

keywords = "Aluminum, Complex, Ligand, Organometallic, Phenoxy-imine, Salicylaldimine",

author = "Amer El-Batta",

year = "2013",

doi = "10.14233/ajchem.2013.15642",

language = "English",

volume = "25",

pages = "8785--8787",

journal = "Asian Journal of Chemistry",

issn = "0970-7077",

number = "15",

}

TY - JOUR

T1 - Synthesis of neutral dimethylaluminum complexes bearing imino-phenoxide ligands

AU - El-Batta, Amer

PY - 2013

Y1 - 2013

N2 - Synthesis of neutral dimethylaluminum complexes ligated by bidentate N,O salicylaldimine ligands is reported. Treatment of the iminophenoxide ligands 3-R-2-(OH)C6H3CH=N(2,6-iPr2C6H 3) [R = 9-anthracenyl (1a) and 1-naphthyl (1b)] with Al(CH 3)3 in toluene affords the corresponding yellow dimethylaluminum compounds {3-R-2-(OH)C6H3CH=N(2,6- iPr2C6H3)}Al(CH3)2 [R = 9-anthracenyl (2a) and 1-naphthyl (2b)] in high yields. Reactions cleanly proceed by protodealumination of the Al-CH3 bond with concomitant elimination of methane. Toluene solutions of 2a-b, when activated with 1 equivalent of B(C6F5)3, polymerized ethylene to solid polyethylene with low activity.

AB - Synthesis of neutral dimethylaluminum complexes ligated by bidentate N,O salicylaldimine ligands is reported. Treatment of the iminophenoxide ligands 3-R-2-(OH)C6H3CH=N(2,6-iPr2C6H 3) [R = 9-anthracenyl (1a) and 1-naphthyl (1b)] with Al(CH 3)3 in toluene affords the corresponding yellow dimethylaluminum compounds {3-R-2-(OH)C6H3CH=N(2,6- iPr2C6H3)}Al(CH3)2 [R = 9-anthracenyl (2a) and 1-naphthyl (2b)] in high yields. Reactions cleanly proceed by protodealumination of the Al-CH3 bond with concomitant elimination of methane. Toluene solutions of 2a-b, when activated with 1 equivalent of B(C6F5)3, polymerized ethylene to solid polyethylene with low activity.

KW - Aluminum

KW - Complex

KW - Ligand

KW - Organometallic

KW - Phenoxy-imine

KW - Salicylaldimine

UR - https://www.scopus.com/pages/publications/84886629755

U2 - 10.14233/ajchem.2013.15642

DO - 10.14233/ajchem.2013.15642

M3 - Article

AN - SCOPUS:84886629755

SN - 0970-7077

VL - 25

SP - 8785

EP - 8787

JO - Asian Journal of Chemistry

JF - Asian Journal of Chemistry

IS - 15

ER -

Synthesis of neutral dimethylaluminum complexes bearing imino-phenoxide ligands

Abstract

Keywords

ASJC Scopus subject areas

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