A facile and efficient synthesis of tetrahydrobenzo[b]pyrans and dihydropyrano[4,3-b]pyrans derivatives using phosphate fertilizers MAP, DAP, and TSP as heterogeneous catalysts

2021 ◽  
Author(s):  
Soukaina Chehab ◽  
Youssef Merroun ◽  
Tourya Ghailane ◽  
Rachida Ghailane ◽  
Said Boukhris ◽  
...  
Keyword(s):  
Heterogeneous Catalysts ◽  
Efficient Synthesis ◽  
Phosphate Fertilizers

Efficient synthesis of 5-hydroxymethylfurfural from mannose with a reusable MCM-41-supported tin catalyst

2018 ◽  
Vol 8 (21) ◽  
pp. 5526-5534 ◽  
Author(s):  
Songyan Jia ◽  
Xinjun He ◽  
Jiao Ma ◽  
Kangjun Wang ◽  
Zhanwei Xu ◽  
...  
Keyword(s):  
Heterogeneous Catalysts ◽  
Significant Loss ◽  
Efficient Synthesis ◽  
Tin Catalyst ◽  
Mcm 41

The Sn/MCM-41 catalyst was demonstrated to be effective for the conversion of mannose into 5-HMF, with comparable performances to those of reported heterogeneous catalysts. The Sn/MCM-41 catalyst was reusable without significant loss of activity after eight consecutive runs.

Bis-ammonium immobilized polystyrenes with co-catalyzing functional end groups as efficient and reusable heterogeneous catalysts for synthesis of cyclic carbonate from CO2 and epoxides

RSC Advances ◽  
2016 ◽  
Vol 6 (3) ◽  
pp. 2217-2224 ◽  
Author(s):  
Qingyuan Deng ◽  
Gaohong He ◽  
Yu Pan ◽  
Xuehua Ruan ◽  
Wenji Zheng ◽  
...  
Keyword(s):  
Functional Groups ◽  
Heterogeneous Catalysts ◽  
Cyclic Carbonate ◽  
Efficient Synthesis ◽  
End Groups

Novel bis-ammonium immobilized polystyrenes with co-catalyzing functional groups were prepared for efficient synthesis of cyclic carbonate from CO2 and epoxides.

Synthesis of 9-Arylhexahydroacridine-1,8-diones Using Phosphate Fertilizers as Heterogeneous Catalysts

2019 ◽  
Vol 55 (9) ◽  
pp. 1380-1386
Author(s):  
S. Chehab ◽  
Y. Merroun ◽  
T. Ghailane ◽  
R. Ghailane ◽  
S. Boukhris ◽  
...  
Keyword(s):  
Heterogeneous Catalysts ◽  
Phosphate Fertilizers

scholarly journals Direct use of mineral fertilizers MAP, DAP, and TSP as heterogeneous catalysts in organic reactions

2016 ◽  
Vol 5 (6) ◽  
pp. 615-623 ◽  
Author(s):  
Imane Bahammou ◽  
Ayoub Esaady ◽  
Said Boukhris ◽  
Rachida Ghailane ◽  
Nouzha Habbadi ◽  
...  
Keyword(s):  
Heterogeneous Catalysts ◽  
Knoevenagel Condensation ◽  
Aromatic Aldehydes ◽  
Significant Loss ◽  
Mineral Fertilizers ◽  
Phosphate Fertilizers ◽  
Reaction Conditions ◽  
Catalytic Activities ◽  
First Time ◽  
Direct Use

In this paper, we reported the first use of phosphate fertilizers (MAP, DAP, and TSP) as heterogeneous catalysts for organic reactions.  Their catalytic activities were investigated in the first time in Knoevenagel condensation of various aromatic aldehydes with malononitrile at room temperature.  These minerals phosphate showed high catalytic activities and ability to be recovering and reusing without a significant loss in their catalytic activities.  In order to reach the optimal reaction conditions for Knoevenagel condensation, we carried out a kinetic study of the effect of reaction time, the effect of solvent, the amount of catalysts and the variation of the range of the particles size the more active.  The best conditions were obtained by the use of these fertilizers (MAP, DAP, and TSP) in their commercial status, simply crashed in powder, without any purification, using ethanol as solvent.  These phosphate fertilizers prove to be very promising and effective heterogeneous catalysts for the condensation of Knoevenagel.

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