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Metal–Pyrazole Bifunction in Half‐Sandwich CN Chelate Iridium Complexes: Pyrazole–Pyrazolato Interconversion and Application to Catalytic Intramolecular Hydroamination of Aminoalkene
Author(s) -
Kashiwame Yohei,
Kuwata Shigeki,
Ikariya Takao
Publication year - 2010
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.200902827
Subject(s) - pyrazole , hydroamination , intramolecular force , iridium , catalysis , chemistry , ligand (biochemistry) , medicinal chemistry , combinatorial chemistry , organic chemistry , biochemistry , receptor
Metal–pyrazole concerto : Protic pyrazole complex 1 underwent reversible dehydrochlorination to give pyrazolato complexes 2 and 3 . Hydrido complex 4 was obtained by transfer hydrogenation of 1 and 2 . The metal–ligand bifunction evidenced by these transformations was successfully applied to catalytic intramolecular hydroamination of unactivated, ω‐alkenic primary and secondary amines.