@misc{10481/93701,
year = {2024},
month = {7},
url = {https://hdl.handle.net/10481/93701},
abstract = {Novel alkyl zinc complexes supported by acetamidate/
thioacetamidate heteroscorpionate ligands have been successfully
synthesized and characterized. These complexes exhibited
different coordination modes depending on the electronic and
steric effects of the acetamidate/thioacetamidate moiety. Their
catalytic activity has been tested toward the hydroelementation
reactions of alkynyl alcohol/acid substrates, affording the
corresponding enol ether/unsaturated lactone products under
mild reaction conditions. Kinetic studies have been performed and
confirmed that reactions are first-order in [catalyst] and zero-order
in [alkynyl substrate]. DFT calculations supported a reaction
mechanism through the formation of the catalytically active species,
an alkoxide-zinc intermediate, by a protonolysis reaction of the Zn−alkyl bond with the alcohol group of the substrate. Based on the
experimental and theoretical results, a catalytic cycle has been proposed.},
organization = {Ministerio de Ciencia e Innovación/Agencia Estatal de
Investigación, Spain (Grants PID2020-117788RB-100/AEI/
10.13039/501100011033, RED2022-134287-T)},
organization = {Junta de
Comunidades de Castilla-La Mancha through “Fondo Europeo
de Desarrollo Regional (FEDER)” (Grant SBPLY/21/
180501/000132)},
organization = {Junta de Comunidades de Castilla-La
Mancha through “Fondo Social Europeo Plus (FSE+)”
(Grant SBPLY/22/180502/000056)},
organization = {Universidad de
Castilla-La Mancha (Grant 2021-GRIN-31240)},
publisher = {ACS Publications},
title = {Zinc-Catalyzed Cyclization of Alkynyl Derivatives: Substrate Scope and Mechanistic Insights},
doi = {10.1021/acs.inorgchem.4c00832},
author = {Martínez de Sarasa Buchaca, Marc and Gaona, Miguel A. and Sánchez-Barba, Luis F. and Garcés, Andrés and Rodríguez, Ana M. and Rodríguez Diéguez, Antonio and de la Cruz-Martínez, Felipe and Castro-Osma, José A. and Lara Sanchez, Agustín},
}