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Title

Amino-modified periodic mesoporous biphenylene-silica

AuthorsLourenço, Mirtha A. O.; Mayoral, Álvaro; Díaz Carretero, Isabel ; Silva, Ana R.; Ferreira, Paula
KeywordsBiphenylene
Knöevenagel condensation reaction
Amine
Catalysis
PMO
Issue Date15-Nov-2015
PublisherElsevier
CitationMicroporous and Mesoporous Materials 217: 167-172 (2015)
AbstractThe amination reaction of biphenylene moieties in crystal-like mesoporous silica (Bph-PMO) is successfully achieved with a density of 3.17 mmol g−1. The amination occurs approximately in every aromatic ring of the biphenylene bridge in the position 2 and 2′, leading to above 50% of the biphenylene group di-aminated. The structural integrity of the synthetized material is preserved during the strong acid treatment to achieve the amine funcionalization of Bph-PMO. The aminated mesoporous organosilica is highly active (initial turnover frequency 2193 h−1 or 37 min−1) and almost 100% selective in the Knöevenagel condensation. Moreover, the amine-modified periodic mesoporous biphenylene-silica is effective for direct metal coordination.
Publisher version (URL)https://doi.org/10.1016/j.micromeso.2015.06.026
URIhttp://hdl.handle.net/10261/189817
DOI10.1016/j.micromeso.2015.06.026
ISSN1387-1811
Appears in Collections:(ICP) Artículos
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