Microwave assisted N-alkylation of amine functionalized crystal-like mesoporous phenylene-silica

abstract

N-Alkylation reaction of amine functionalized phenylene moieties in crystal-like mesoporous silica is successfully achieved with about 87% of conversion in two reaction cycles. A potassium iodide catalyzed method commonly used for the selective N-monoalkylation of aniline is adapted and optimized to the N-monoalkylation reactions of the amine functionalized periodic mesoporous phenylene-silica (NH2-PMO) under microwave irradiation with preservation of the ordered mesostructure and of the crystal-like molecular scale periodicity of the material. This functionalization opens an avenue for the preparation of new materials with different amino-alkyl groups specially designed for a desired application, namely on the adsorption or catalytic fields.

keywords

ORGANIC GROUPS; FRAMEWORKS; WALLS

subject category

Chemistry

authors

Lourenco, MAO; Siegel, R; Mafra, L; Ferreira, P

our authors

acknowledgements

The authors thank FCT and FEDER (QREN - COMPETE) for funding the projects PTDC/EQU-EQU/099423/2008, PTDC/QUI-QUI/100998/2008 and PEst-C/CTM/LA0011/2011. FCT is acknowledged for financing the Portuguese NMR Network (RNRMN), the Post-Doc grant SFRH/BPD/44355/2008 (to R.S.) and the PhD grant SFRH/BD/80883/2011 (to M.A.O.L.).

Share this project:

Related Publications

We use cookies for marketing activities and to offer you a better experience. By clicking “Accept Cookies” you agree with our cookie policy. Read about how we use cookies by clicking "Privacy and Cookie Policy".