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Efficient Bifunctional Nanocatalysts by Simple Postgrafting of Spatially Isolated Catalytic Groups on Mesoporous Materials
Author(s) -
Sharma Krishna K.,
Asefa Tewodros
Publication year - 2007
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200604570
Subject(s) - bifunctional , nitromethane , mesoporous material , catalysis , nanomaterial based catalyst , nitroaldol reaction , bifunctional catalyst , chemistry , condensation , materials science , organic chemistry , enantioselective synthesis , physics , thermodynamics
Hard graft pays off for Henry : An efficient acid–base bifunctional mesoporous catalyst was prepared by one‐step post‐synthesis grafting of aminoorganoalkoxysilane groups on mesoporous silica (see picture). The catalyst led to yields of over 99 % in the Henry reaction (nitroaldol condensation) of p ‐hydroxybenzaldehyde and nitromethane to form nitrostyrene.