A supramolecular hexameric ring from alumazene and methylsulfonate

Abstract

A dealkylsilylation reaction of alumazene [2,6-(i-Pr)(2)C6H3NAlMe](3) (1) with trimethylsilyl methylsulfonate in a 1:2 molar ratio in toluene afforded a supramolecular cyclic hexamer {Me[2,6-(i-Pr)(2)C6H3NAl](3)-(O3SMe)(2)}(6) (2) composed of six intact alumazene rings and possessing two types of bridging sulfonate groups. Changing the reagent molar ratio to 1:3 caused the third sulfonate to partially substitute the last alumazene methyl group in an eta(2) fashion and introduced a disorder in the crystal lattice.