Isolation and Characterization of Well-Defined Silica-Supported Azametallacyclopentane: A Key Intermediate in Catalytic Hydroaminoalkylation Reactions

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Type
Article
Authors
Hamzaoui, Bilel cc
Pelletier, Jeremie cc
El Eter, Mohamad
Chen, Yin
Abou-Hamad, Edy cc
Basset, Jean-Marie cc
KAUST Department
Chemical Science Program
KAUST Catalysis Center (KCC)
KAUST Solar Center (KSC)
Physical Sciences and Engineering (PSE) Division
Date
2015-09-25
Permanent link to this record
http://hdl.handle.net/10754/578864

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Abstract
Intermolecular catalytic hydroaminoalkylation of unactivated alkene occurs with silica-supported azazirconacyclopropane [[TRIPLE BOND]Si[BOND]O[BOND]Zr(HNMe2)(η2-NMeCH2)(NMe2)]. Mechanistic studies were conducted using surface organometallic chemistry (SOMC) concepts to identify the key surface intermediates. The azametallacyclopentene intermediate {[TRIPLE BOND]Si[BOND]O[BOND]Zr(HNMe2)[η2-NMeCH2CH(Me)CH2](NMe2)} was isolated after treating with 1-propylene and characterized by FT-IR spectroscopy, elemental analysis, 1H 13C HETCOR, DARR SS-NMR and DQ TQ SS-NMR. The regeneration of the catalyst was conducted by dimethylamine protonolysis to yield the pure amine.
Citation
Isolation and Characterization of Well-Defined Silica-Supported Azametallacyclopentane: A Key Intermediate in Catalytic Hydroaminoalkylation Reactions 2015:n/a Advanced Synthesis & Catalysis
Publisher
Wiley
Journal
Advanced Synthesis & Catalysis
ISSN
16154150
DOI
10.1002/adsc.201500484
Additional Links
http://doi.wiley.com/10.1002/adsc.201500484
Collections
Articles; Physical Sciences and Engineering (PSE) Division; Chemical Science Program; KAUST Catalysis Center (KCC); KAUST Solar Center (KSC)