Work

“NONO” calix[4]arene zirconium complexes with functionalized side chains

Year: 2026

Type: preprint

Abstract: A series of zirconium (IV) complexes with a bis(N,N-Dimethylethylenediamino)-p-tert-butylcalix[4]arene, (L2H2), and (1S,2S)-N1,N1-Dimethyl-1,2-cyclohexanediamino -p-tert-butylcalix[4]arene, (L3H2), were synthetized and structurally characterized via single crystal X-ray diffraction and NMR. Comparing them with L1 complexes,1 slight increase in the stability towards protic substrates was observed as well as formal HCl elimination and formation of an anilino-anilido complex was observed for L3. Rac-lactide polymerization was attempted as well as intermolecular hydroamination of alkynes. The effect of the coordinating and basic side chains modifies the reactivity of the complexes but still do not show remarkable improvements in the catalytic applications.

Source: ChemRxiv

DOI: 10.26434/chemrxiv.15010934/v1

Authors: Matteo Cardoso, Jacques Beauchemin-Ratté, Frank Schaper

Institutions: Centre in Green Chemistry and Catalysis, Université de Montréal

Language: English

Topic: Supramolecular Chemistry and Complexes

Subfield: Organic Chemistry

Field: Chemistry

Domain: Physical Sciences

Open Access status: green

Funders: Centre in Green Chemistry and Catalysis, Natural Sciences and Engineering Research Council of Canada

Award: G3970872308

OpenAlex ID: W7223260146

Cites: 34

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Related to: 10