RT Journal Article
T1 Hydrotris(3-mesitylpyrazolyl)borato-copper(i) alkyne complexes: synthesis, structural characterization and rationalization of their activities as alkyne cyclopropenation catalysts
A1 Martín Gandul, Carmen
A1 Sierra, Marta
A1 Álvarez, Eleuterio
A1 Rodríguez Belderraín, Tomás
A1 Pérez Romero, Pedro José
AB The use of the bulky hydrotris(3-mesitylpyrazolyl)borate anionic ligand has allowed the synthesis of stable TpMsCu(alkyne) complexes (alkyne = 1-hexyne, 1, phenylacetylene, 2, and ethyl propiolate, 3). The spectroscopic and structural features of these compounds and their relative reactivity have been examined, indicating the existence of a low π back-bonding from the copper(I) centre to the alkyne. Ligand exchange experiments have shown that terminal alkyne adducts are more stable than internal alkyne analogues. In good accordance with this, the previously reported alkyne cyclopropenation reaction catalysed by the TpxCu complexes can be rationalized and correlated with their relative stability
PB Royal Society of Chemistry
SN 1477-9226
SN 1477-9234 (electrónico)
YR 2012
FD 2012
LK https://hdl.handle.net/10272/22793
UL https://hdl.handle.net/10272/22793
LA eng
NO Martín, C., Sierra, M., Alvarez, E., Belderrain, T. R., & Pérez, P. J. (2012). Hydrotris(3-mesitylpyrazolyl)borato-copper(i) alkyne complexes: synthesis, structural characterization and rationalization of their activities as alkyne cyclopropenation catalysts. In Dalton Transactions (Vol. 41, Issue 17, p. 5319). Royal Society of Chemistry (RSC). https://doi.org/10.1039/c2dt11951j
NO We thank the MICINN (CTQ2008-00042/BQU) and the Junta de Andalucía (Proyecto P07-FQM-02794). C.M. thanks the Ministerio de Educación for a research fellowship
DS Repositorio Institucional de la Universidad de Huelva
RD 30 may 2026