Synthesis and characterization of thiophene-derived palladium(ii) complex immobilized on FSM-16 and its application in the novel synthesis of 7-(aryl)-7,12-dihydro-6H-indeno[1,2,4]triazolo[1,5-a]pyrimidine-6-one derivatives

Abstract

The present study aims at synthesizing a palladium complex with a thiophene-carboimine ligand, supported on FSM-16 as a mesoporous silica support.

A novel ionic liquid immobilized on FSM-16: a novel recoverable nanocatalyst for the synthesis of biscoumarin derivatives

“…2a, four peaks are seen at 2 θ = 23.4°, 37.1°, 48.5° and 61.5°, attributed to the (100), (110), (200), and (210) planes of FSM-16, respectively, which confirms that the FSM-16 has a hexagonal structure. 28,35 In addition, as shown in Fig. 2b, the intensity of the main peaks of the FSM-16-IL-SO 3 H was changed as compared to that of FSM-16, owing to the stabilization of the acidic IL onto FSM-16.…”

“…1a and c, the absorption band at 3400 cm À1 is attributed to the O-H bond. 27,28,35 According to the spectrum of IL (Fig. 1b), the existing peaks at 2980 and 1191 cm À1 correspond to CH 2 and C-N, respectively.…”

“…31,32 The pore size of FSM-16 is in the range of 2-50 nm, which has attracted attention in the fields of catalytic chemistry, adsorption, stabilizer agents for semiconductor clusters and biomolecules, separation membranes, functional electronics, and photonic materials. 33 Some of the most recent FSM-16 catalytic systems that have been investigated include Fe 3 O 4 @FSM-16-SO 3 H, 34 FSM-16@iminethiophen/Pd, 35 FSM-16/AEPC-SO 3 H, 36 FSM-16-Met, 37 and FSM-16-SO 3 H. 38 Among the heterocyclic compounds that are widely found in nature, oxygen-containing heterocycles occupy a special place. Coumarin and its derivatives have been the subject of numerous studies since their discovery due to their unique applications in pharmaceutics, pharmacologic and cosmetic industries, agriculture, fluorescent probes, polymers, and organic materials.…”

“…31,32 The pore size of FSM-16 is in the range of 2–50 nm, which has attracted attention in the fields of catalytic chemistry, adsorption, stabilizer agents for semiconductor clusters and biomolecules, separation membranes, functional electronics, and photonic materials. 33 Some of the most recent FSM-16 catalytic systems that have been investigated include Fe 3 O 4 @FSM-16-SO 3 H, 34 FSM-16@imine-thiophen/Pd, 35 FSM-16/AEPC-SO 3 H, 36 FSM-16-Met, 37 and FSM-16-SO 3 H. 38…”

Ionic liquid immobilized on modified magnetic FSM-16: an efficient and magnetically recoverable nanocatalyst

“…Polyhydroquinoline derivatives are usually synthesized via the four-compound one-pot reaction of aldehyde, dimedone, ethyl acetoacetate, ammonium acetate, and the corresponding catalyst. [49][50][51] In continuation of our studies program for the synthesis of novel heterogeneous nanocatalysts and also considering the importance of mesoporous materials in the catalysis synthesis process, 12,[52][53][54][55][56][57][58] herein, a recyclable magnetic catalyst based on FSM-16 (Fe 3 O 4 @FSM-16-SO 3 /IL) has been synthesized and characterized. Furthermore, Fe 3 O 4 @FSM-16-SO 3 /IL was used as an effective catalyst in the synthesis of polyhydroquinoline derivatives via the one-pot reaction of various aromatic aldehydes, dimedone, ethyl acetoacetate, and ammonium acetate.…”