title: Co(II) PCP Pincer Complexes as Catalysts for the Alkylation of Aromatic Amines with Primary Alcohols.
abstract: Efficient alkylations of amines by alcohols catalyzed by well-defined Co(II) complexes are described that are stabilized by a PCP ligand (N,N'-bis(diisopropylphosphino)-N,N'-dimethyl-1,3-diaminobenzene) based on the 1,3-diaminobenzene scaffold. This reaction is an environmentally benign process implementing inexpensive, earth-abundant nonprecious metal catalysts and is based on the acceptorless alcohol dehydrogenation concept. A range of primary alcohols and aromatic amines were efficiently converted into mono-N-alkylated amines in good to excellent isolated yields.
authors.affiliation: Institute of Applied Synthetic Chemistry and ‡Institute of Chemical Technologies and Analytics, Vienna University of Technology , Getreidemarkt 9/163-AC, A-1060 Wien, Austria.
authors.forename: Matthias
authors.initials: M
authors.lastname: Mastalir
authors.affiliation: Institute of Applied Synthetic Chemistry and ‡Institute of Chemical Technologies and Analytics, Vienna University of Technology , Getreidemarkt 9/163-AC, A-1060 Wien, Austria.
authors.forename: Gerald
authors.initials: G
authors.lastname: Tomsu
authors.affiliation: Institute of Applied Synthetic Chemistry and ‡Institute of Chemical Technologies and Analytics, Vienna University of Technology , Getreidemarkt 9/163-AC, A-1060 Wien, Austria.
authors.forename: Ernst
authors.initials: E
authors.lastname: Pittenauer
authors.affiliation: Institute of Applied Synthetic Chemistry and ‡Institute of Chemical Technologies and Analytics, Vienna University of Technology , Getreidemarkt 9/163-AC, A-1060 Wien, Austria.
authors.forename: Günter
authors.initials: G
authors.lastname: Allmaier
authors.affiliation: Institute of Applied Synthetic Chemistry and ‡Institute of Chemical Technologies and Analytics, Vienna University of Technology , Getreidemarkt 9/163-AC, A-1060 Wien, Austria.
authors.forename: Karl
authors.initials: K
authors.lastname: Kirchner