RT journal article
T1 Selective semi-hydrogenation of internal alkynes catalyzed by Pd-CaCO3 clusters
A1 Ballesteros-Soberanas, Jordi
A1 Hernández Garrido, Juan Carlos
A1 Cerón-Carrasco, José Pedro
A1 Leyva-Pérez, Antonio
A2 Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica
K1 Metal clusters
K1 Minimum catalytic unit
K1 Semi-hydrogenation of alkynes
K1 Lindlar catalyst
K1 Internal alkynes
AB The de-novo synthesis of soluble or solid-supported Pd-(CaCO3)(n) clusters (n = 2-13) and their high catalytic activity for the semi-hydrogenation of internal alkynes compared to terminal alkynes, is presented. Mechanistic studies show that this reactivity, i.e. internal alkynes more reactive than terminal alkynes, comes from the higher electrophilicity of the Pd-(CaCO3)(n) cluster compared to the nanoparticulated Lindlar catalyst, which unveils the advantages of isolating the minimum catalytic unit of a solid catalyst. Translating solid active sites into soluble catalysts turns around the classical approach and constitutes a paradigmatic shift in catalyst design. (C)& nbsp;2022 The Author(s). Published by Elsevier Inc.& nbsp; & nbsp;
PB ELSEVIER
SN 1090-2694
YR 2022
FD 2022-04
LK http://hdl.handle.net/10498/27230
UL http://hdl.handle.net/10498/27230
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 15-nov-2026