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Updated: Apr 8, 2026

A Protocol for Safe Lithiation Reactions Using Organolithium Reagents
Published on: November 12, 2016
A Well-Defined Aluminum-Based Lewis Acid as an Effective Catalyst for Diels-Alder Transformations
Zhizhou Liu1, Jazreen Hui Qi Lee1, Rakesh Ganguly1
1School of Physical and Mathematical Sciences, Department of Chemistry and Biological Chemistry, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Fax: (+65) 6791-196.
Abstract:
A catalytically active aluminum-based system for Diels-Alder transformations is reported. The system was generated by mixing a β-diketiminate-stabilized aluminum bistriflate compound with Na[BAr(Cl) 4 (Ar(Cl) =3,5-Cl2 C6 H3). Solid-state analysis of the catalytic system reveals a unique structure incorporating a two-dimensional coordination polymer. According to the experimental results obtained from several Diels-Alder transformations, the aluminum-based system appears to be a more practical and more robust alternative to the recently reported compounds based on carbon and silicon cations.
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