Journal
CATALYSIS LETTERS
Volume 145, Issue 2, Pages 631-639Publisher
SPRINGER
DOI: 10.1007/s10562-014-1453-8
Keywords
N-heterocyclic carbenes; Silver and ruthenium complexes; Catalysis; Transfer hydrogenation
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This study deals with the synthesis of N-propylphthalimide substituted Ag(I)-N-heterocyclic carbene (NHC) complexes and N-propylphthalimide substituted Ru(II)-NHC complexes in the transfer hydrogenation of ketones. The Ag(I)-NHC complexes were synthesized from the imidazolium salts and Ag2O in dichloromethane at room temperature. The Ru(II)-NHC complexes have been prepared from Ag(I)-NHC complexes using transmetallation method. The six N-propylphthalimide substituted Ag(I)-NHC complexes and six N-propylphthalimide substituted Ru(II)-NHC complexes have been characterized by spectroscopic techniques and elemental analyses. N-propylphthalimide substituted Ru(II)-NHC complexes have been analyzed as catalysts for the transfer hydrogenation of ketones and exhibit activity in this reaction. This study deals with the synthesis of N-propylphthalimide substituted Ag(I)-N-heterocyclic carbene (NHC) complexes and N-propylphthalimide substituted Ru(II)-NHC complexes in the transfer hydrogenation of ketones. The Ag(I)-NHC complexes were synthesized from the imidazolium salts and Ag2O in dichloromethane at room temperature. The Ru(II)-NHC complexes have been prepared from Ag(I)-NHC complexes using transmetallation method. The six N-propylphthalimide substituted Ag(I)-NHC complexes and six N-propylphthalimide substituted Ru(II)-NHC complexeshavebeencharacterizedbyspectroscopictechniquesandelementalanalyses. N-propylphthalimide substituted Ru(II)-NHC complexes have been analyzed as catalysts for the transfer hydrogenation of ketones and exhibit activity in this reaction.
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