Complexes of organoaluminium compounds. Part II. Ammonia, aniline, and diphenylamine complexes of ethylaluminium chlorides
Abstract
Reactions and conductivities in liquid ammonia suggest that the adduct Et2AlCl,2NH3 has the structure [Et2Al(NH3)2]+Cl–. Triethylaluminium forms a liquid adduct Et3Al,2NH3 and gives a solution of low conductivity in liquid ammonia. Aniline complexes of ethylaluminium chlorides lose ethane on heating, with the formation of the derivatives (R2AlNHPh)2 and (RAlNPh)4(R = Et or Cl), and diphenylamine complexes give derivatives (R2AlNPh2)2. When these react with compounds HX (X = Cl, NH2, or NMe2), aluminium–nitrogen bonds are attacked before aluminium–carbon bonds. Amido-derivatives of aluminium are discussed.