TY - JOUR
T1 - Modulated large-pore mesoporous silica as an efficient base catalyst for the Henry reaction
AU - Shokouhimehr, Mohammadreza
AU - Asl, Mehdi Shahedi
AU - Mazinani, Babak
N1 - Publisher Copyright:
© 2017, Springer Science+Business Media B.V., part of Springer Nature.
PY - 2018/3/1
Y1 - 2018/3/1
N2 - In this study, mesoporous silica materials with tuned pores and surface areas were successfully synthesized by adjusting the amount of applied hexane and controlling the hydrothermal temperature. The synthesized silica materials were then functionalized by an amine group to produce solid base catalysts and be applicable as efficient heterogeneous base catalysts for the Henry reaction. The mesoporous silica catalysts possessing large-pores and surface area expose their active catalytic sites and thereby improve contacts with reactants fulfilling the reactions expeditiously in comparison with solid base catalysts possessing small-pores and surface area. The results indicated that the yield of the products is significantly dependent on the structure of the applied solid base catalysts. The modulated large-pore solid base catalysts presented high catalytic activity in Henry reactions and could be reused for five consecutive cycles.
AB - In this study, mesoporous silica materials with tuned pores and surface areas were successfully synthesized by adjusting the amount of applied hexane and controlling the hydrothermal temperature. The synthesized silica materials were then functionalized by an amine group to produce solid base catalysts and be applicable as efficient heterogeneous base catalysts for the Henry reaction. The mesoporous silica catalysts possessing large-pores and surface area expose their active catalytic sites and thereby improve contacts with reactants fulfilling the reactions expeditiously in comparison with solid base catalysts possessing small-pores and surface area. The results indicated that the yield of the products is significantly dependent on the structure of the applied solid base catalysts. The modulated large-pore solid base catalysts presented high catalytic activity in Henry reactions and could be reused for five consecutive cycles.
KW - Base catalyst
KW - Henry reaction
KW - Heterogeneous catalyst
KW - Mesoporous materials
KW - Nitroaldol condensation
KW - Silica
UR - http://www.scopus.com/inward/record.url?scp=85033385384&partnerID=8YFLogxK
U2 - 10.1007/s11164-017-3188-9
DO - 10.1007/s11164-017-3188-9
M3 - Article
AN - SCOPUS:85033385384
SN - 0922-6168
VL - 44
SP - 1617
EP - 1626
JO - Research on Chemical Intermediates
JF - Research on Chemical Intermediates
IS - 3
ER -