The Direct Carboxylation of Terminal Alkynes with Carbon Dioxide Using Copper-Conjugated Microporous Polymer as Catalyst

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Abstract:

A Cu-conjugated microporous polymer catalyst (CMP-Cu) was designed and prepared via Sonogashira-Hagihara cross-coupling of 3,8-dibromo-1,10-phenanthroline with 1,3,5-triethyny benzene in toluene. The CMP-Cu showed a catalytic activity for direct carboxylation of terminal alkynes with CO2 in the presence of K2CO3/Cs2CO3 at mild conditions. Several propiolic acids (such as 3-phenylpropiolic acid, 3-(4-nitrophenyl)propiolic acid and 4,4-dimethyl-2-pentynoic acid) have been prepared in a simple and feasible method at room temperature and atmospheric pressure. This catalyst is attractive for CO2 transformation.

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Advanced Materials Research (Volumes 634-638)

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612-615

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January 2013

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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