Lehrstuhl für Anorganische Chemie II, Universit?tsstra?e 30, NW I, 95440 Bayreuth (Germany), Fax: (+49)?921‐55‐2157
Abstract:
Selective amine alkylation : A P,N‐ligand‐stabilized iridium complex has been used as an efficient catalyst for the alkylation of (hetero)aromatic amines with alcohols at mild reaction temperatures and catalyst loadings as low as 0.1 mol % Ir (see scheme). The excellent selectivity of the catalyst for monoalkylation of the amine function has also been exploited for the N,N′‐dialkylation of diamines in both symmetric and nonsymmetric fashions.