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Ruthenium Complexes of Electronically Coupled Cyclopentadienone Ligands – Catalysts for Transformations of Propargyl Alcohols
Author(s) -
Haak Edgar
Publication year - 2007
Publication title -
european journal of organic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.825
H-Index - 155
eISSN - 1099-0690
pISSN - 1434-193X
DOI - 10.1002/ejoc.200700064
Subject(s) - chemistry , propargyl , ruthenium , catalysis , amination , ligand (biochemistry) , conjugated system , ketone , organic chemistry , acceptor , medicinal chemistry , biochemistry , polymer , receptor , physics , condensed matter physics
Abstract A series of donor‐ and acceptor‐substituted ruthenium cyclopentadienone complexes were synthesized and their catalytic activities towards propargyl alcohols focused on amination reactions have been investigated. It is shown that the substituents of the cyclopentadienone ligand determine the mode of activation of propargyl alcohols by these complexes leading to different central intermediates in catalytic cycles. Catalytic transformations of propargyl alcohols to α‐ or β‐amino ketones, enamino ketones, α,β‐unsaturated imines, ketones, alkenes and conjugated enynes could be achieved. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)