Carboxylation of terminal alkynes with CO2using novel silver N-heterocyclic carbene complexes

Autor:	Shanshan Li, Xiangchen Fang, Ming-Dong Zhou, Zhizhi Zhang, Jing Sun, Ruixia Xie
Rok vydání:	2016
Předmět:	chemistry.chemical_classification Reaction mechanism 010405 organic chemistry Stereochemistry Aryl 010402 general chemistry 01 natural sciences Medicinal chemistry 0104 chemical sciences Catalysis Inorganic Chemistry Crystal chemistry.chemical_compound Carboxylation chemistry Carbene Alkyl
Zdroj:	Dalton Trans.. 45:10577-10584
ISSN:	1477-9234 1477-9226
Popis:	Four novel N-heterocyclic carbene (NHC) silver complexes, I–IV, have been synthesized and characterized. The single X-ray crystal diffraction data indicate a dinuclear solid-state structure for I and III and a mononuclear structure for II and IV. These complexes have been successfully used as efficient catalysts for the C–H activating carboxylation of terminal alkynes with CO2. A wide range of substrates with various functional groups afforded the corresponding aryl or alkyl substituted propiolic acids in good yields under mild conditions. Moreover, the role of bases and the reaction mechanism is thoroughly discussed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c76fce0b342cd76ad6574339421f308b https://doi.org/10.1039/c6dt01746k Zobrazit plný text záznamu