Highly active aluminium catalysts for room temperature ring-opening polymerisation of rac-lactideElectronic supplementary information (ESI) available. CCDC 1836017-1836019. For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/c8dt01526k, 10.14469/hpc/4037

A new series of aluminium complexes bearing 'catam' ligands has been synthesised and fully characterised. They were found to exhibit high activity at room temperature for rac -lactide ring-opening polymerisation, a rather rare feature for aluminium-based catalysts. New aluminium catalysts for room temperature rac -lactide ROP.