@article{10272/11567,
year = {2011},
url = {http://hdl.handle.net/10272/11567},
abstract = {The Pd(0) complexes
NHCPdLn (NHC = N-heterocyclic
carbene ligand; L = styrene for n = 2 or
PR3 for n = 1) efficiently catalyze the
olefin cyclopropanation using ethyl
diazoacetate (EDA) as the carbene
source with activities that improve any
other previous described catalytic
system based on this metal.
Mechanistic studies have shown that all
those catalyst precursors deliver in
solution the same catalytic species
(IPr)Pd(sty), a 14e, unsaturated
intermediate that further reacts with
EDA to afford (IPr)Pd(=CHCO2Et)(sty),
from which cyclopropane is formed.},
organization = {We thank Prof. P.J. Perez (Univ. Huelva) for helpful and constructive comments on these studies. We thank the Ministerio de Ciencia e Innovacion (grants CTQ2008-00042BQU and CTQ2011-24502) and the Junta de Andalucia (Proyecto P07-FQM-02794) for financial support. CM thanks the MEC for a research fellowship.We thank Prof. P. J. Pérez (Univ. Huelva) for helpful and constructive comments on these studies. We thank the Ministerio de Ciencia e Innovación (grants CTQ2008–00042BQU and CTQ2011–24502) and the Junta de Andalucía (Proyecto P07-FQM-02794) for financial support. CM thanks the MEC for a research fellowship},
publisher = {Wiley-VCH Verlag},
title = {Stable N-heterocyclic carbene (NHC)-palladium(0) complexes as active catalysts for olefin cyclopropanation reactions with ethyl diazoacetate},
doi = {10.1002/chem.201102900},
author = {Martín, Carmen and Molina González, Francisco and Álvarez, Eleuterio and Rodríguez Belderraín, Tomás},
}