Switchable imine and amine synthesis catalyzed by a tripodal ligand-supported well-defined cobaltcomplex is presented herein. A large variety of primary alcohols and amines were selectively converted to imines or amines in good to excellent yields. It is discovered that the base plays a crucial role on the selectivity. A catalytic amount of base leads to the imine formation, while an excess loading
Direct reductivealkylation of amines with carboxylic acid is carried out by using an inexpensive, air‐stable cobalt/triphos catalytic system with molecular hydrogen as the reductant. This efficient synthetic method proceeds through reduction and condensation, followed by reduction of the in situ‐generated imine into the amine in a green catalytic process.
A will of iron: An iron‐catalyzedreductiveamination of aldehydes and ketones with anilines using molecular hydrogen is presented. Under mild conditions, high yields for a broad range of aryl, alkyl, and heterocyclic ketones as well as aldehydes are achieved.
ruthenium (RuNPore) is a highly efficient, practically applicable, and recyclable heterogeneous catalyst for hydrogenation of CN bonds exist in quinolines and imines using H molecular as reductants. A variety of quinolines and imines with a broad functional groups were transformed to the corresponding desired compounds under mild conditions. The selectivehydrogenation reaction occurred exclusively in