Zeolite-based copper catalyst for decarboxylative coupling of alkynyl carboxylic acids with aryl iodides

A series of nanoporous aluminosilicate materials (zeolite FAU(Y), LTA(A), and mesoporous Al-SBA-15) was prepared to investigate their catalytic performances in decarboxylative coupling reactions of alkynyl carboxylic acids with aryl iodides. The aluminosilicate frameworks were used for binding Cu(II...

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Published inCatalysis communications Vol. 99; pp. 83 - 88
Main Authors Park, Jaerim, Jung, Dasom, Kim, Han-Sung, Na, Kyungsu, Lee, Sunwoo
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.08.2017
Subjects
Aryl iodide
Copper
Decarboxylative coupling
Recyclable
Zeolite
Decarboxylative coupling
Zeolite
Aryl iodide
Copper
Recyclable
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Summary:A series of nanoporous aluminosilicate materials (zeolite FAU(Y), LTA(A), and mesoporous Al-SBA-15) was prepared to investigate their catalytic performances in decarboxylative coupling reactions of alkynyl carboxylic acids with aryl iodides. The aluminosilicate frameworks were used for binding Cu(II) ions without coordination by organic ligands. Effects of pore size and Cu(II) content of the aluminosilicates on the catalytic activity and product yield were investigated by varying the solvent, base, and functional groups in the reactants. This catalytic system provided high yields and good selectivity for the desired diaryl alkynes. In addition, the Cu(II)-exchanged zeolite Y catalyst which is NaCuY(0.11) exhibited high recyclability, showing no significant change in catalytic performance after six repetitions. [Display omitted] •A zeolite-based copper catalyst is a readily prepared and inexpensive system.•This catalytic system is ligand-free with a reusable heterogeneous catalyst.•This catalytic system shows good yields in decarboxylative coupling reaction.
ISSN:1566-7367
1873-3905
DOI:10.1016/j.catcom.2017.05.025