Lanthanide-based coordination polymers as promising heterogeneous catalysts for ring-opening reactions. Issue 26 (22nd February 2016)

• Record Type: Journal Article
• Authors: Kumar, Gulshan; Kumar, Girijesh; Gupta, Rajeev
• Is Part Of: RSC advances. Volume 6:Issue 26(2016)
• Page Start: 21352
• Page End: 21361
• Publication Date: 2016-02-22
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/c5ra26283f
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : Eu and Tb based coordination polymers function as reusable heterogeneous catalysts for ring-opening reactions with amines, alcohols, thiols, and azides as nucleophiles. Abstract : This work presents the synthesis and structural characterization of Eu 3+ - and Tb 3+ -based coordination polymers starting from a Co 3+ -based metalloligand offering appended arylcarboxylic acid groups. Both coordination polymers function as reusable heterogeneous catalysts for ring-opening reactions utilizing amines, alcohols, thiols, and azides as the nucleophiles. The catalytic results illustrate an excellent control over the regioselectivity whereas a filtration test and mechanistic studies substantiate Lewis-acid catalyzed activation of the epoxide during the reaction.