authors |
Lourenco, MAO; Mayoral, A; Diaz, I; Silva, AR; Ferreira, P |
nationality |
International |
journal |
MICROPOROUS AND MESOPOROUS MATERIALS |
author keywords |
Catalysis; PMO; Biphenylene; Knoevenagel condensation reaction; Amine |
keywords |
METAL-ORGANIC FRAMEWORK; CHANNEL WALLS; ORGANOSILICAS; CATALYST |
abstract |
The 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 Knoevenagel condensation. Moreover, the amine-modified periodic mesoporous biphenylene-silica is effective for direct metal coordination. (C) 2015 Elsevier Inc. All rights reserved. |
publisher |
ELSEVIER SCIENCE BV |
issn |
1387-1811 |
year published |
2015 |
volume |
217 |
beginning page |
167 |
ending page |
172 |
digital object identifier (doi) |
10.1016/j.micromeso.2015.06.026 |
web of science category |
Chemistry, Applied; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary |
subject category |
Chemistry; Science & Technology - Other Topics; Materials Science |
unique article identifier |
WOS:000360596100022
|