Authors: Rita Lopes João M S Cardoso Lorena Postigo Beatriz Royo
Publish Date: 2013/08/14
Volume: 143, Issue: 10, Pages: 1061-1066
Abstract
The welldefined pianostool ironII complex CpNHCFeCOI bearing a bidentate cyclopentadienylfunctionalised Nheterocyclic carbene ligand is shown to catalyse the reduction of ketones under mild conditions 1–2 h at room temperature when combined with catalytic amounts of potassium tertbutoxide and using Ph2SiH2 and the inexpensive and less reactive polymethylhydrosiloxane as reducing agents The stoichiometric reaction of CpNHCFeCOI with potassium tertbutoxide generates an ironhydroxo complex which seems to be the active species in the reduction of ketonesThis study was supported by Fundação para a Ciência e a Tecnologia through projects PTDC/QUI–QUI/110349/2009 and PTDC/QUI–QUI/099389/2008 JMS Cardoso thanks FCT for the PhD fellowship SFRH/BD/66386/2009 The NMR spectrometers are part of the National NMR Network and REDE/1517/RMN/2005 supported with funds from POCI 2010 and FCT
Keywords: