Two C2-symmetric Chelating P2-bisphosphazene Superbases ...

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Chemical Communications

Two C2-symmetric chelating P2-bisphosphazene superbases connected via a binaphthyl backbone – synthesis, structural features and preparation of a cationic alkyl aluminum complex†

Julius F. Kögel,a Nis-Julian Kneuselsa and Jörg Sundermeyer*a Author affiliations

* Corresponding authors

a Philipps-Universität Marburg, Fachbereich Chemie, Hans-Meerwein-Straße, 35032 Marburg, Germany E-mail: [email protected] Fax: +49 (0)642128-25711

Abstract

Two P2-phosphazenyl groups were linked via a C2-symmetric binaphthyl backbone resulting in two novel chiral superbases with dimethylamino and pyrrolidino substituents. We investigated their basic properties and coordination chemistry towards a cationic alkyl aluminum fragment. The outstanding basicity of the chiral tetrasphosphazenes presented herein leads to interesting perspectives for application in asymmetric Brønsted base catalysis.

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Supplementary files

• Supplementary information PDF (489K)
• Crystal structure data CIF (129K)

Article information

DOI https://doi.org/10.1039/C4CC00773E Article type Communication Submitted 28 Jan 2014 Accepted 26 Feb 2014 First published 26 Feb 2014 This article is Open Access

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Chem. Commun., 2014,50, 4319-4321 BibTex EndNote MEDLINE ProCite ReferenceManager RefWorks RIS

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Two C2-symmetric chelating P2-bisphosphazene superbases connected via a binaphthyl backbone – synthesis, structural features and preparation of a cationic alkyl aluminum complex

J. F. Kögel, N. Kneusels and J. Sundermeyer, Chem. Commun., 2014, 50, 4319 DOI: 10.1039/C4CC00773E

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