Organoaluminium complexes of ortho-, meta-, para-anisidines: synthesis, structural studies and ROP of ε-caprolactone (and rac-lactide)

{[1,2-(OMe),NC 6 H 4 (μ-Me 2 Al)](μ-Me 2 Al)} 2 ( 1 ), [1,3-(Me 3 AlOMe),NHC 6 H 4 (μ-Me 2 Al)] 2 ( 2 ) and [1,4-(Me 3 AlOMe),NHC 6 H 4 (μ-Me 2 Al)] 2 ( 3 ) are all highly active for the ROP of ε-caprolactone.