Magnetic mesocellular foams with nickel complexes: as efficient and reusable nanocatalysts for the synthesis of symmetrical and asymmetrical diaryl chalcogenides

Shirvandi, Zeinab; Rostami, Amin; Ghorbani‐Choghamarani, Arash

doi:10.1039/d1na00822f

Cited by 4 publications

(4 citation statements)

References 78 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This result means that the magnetic nanoparticles have been successfully placed within the MCF pore. 40 In the XRD spectrum of MMCF@Thr-Pd nanocatalyst ( Fig. 6b ), the presence of all peaks related to γ-Fe 2 O 3 nanoparticles confirmed that the coating of the palladium complex did not change the phase of γ-Fe 2 O 3 nanoparticles.…”

Section: Resultsmentioning

confidence: 69%

See 1 more Smart Citation

A palladium(0)–threonine complex immobilized on the surface of magnetic mesocellular foam: an efficient, stable, and magnetically separable nanocatalyst for Suzuki, Stille, and Heck cross-coupling reactions

Shirvandi

Ghorbani‐Choghamarani

Rostami

2023

RSC Adv.

Self Cite

View full text Add to dashboard Cite

show abstract

Section: Resultsmentioning

confidence: 69%

“…According to the similar procedure, 40,55 the obtained MMCF (1 g) was well dispersed in deionized water (40 mL) under ultrasonication for 20 min. Afterward, l -threonine (0.39 g, 3.0 mmol) was added and stirred under reflux for 48 h under an nitrogen atmosphere.…”

Section: Methodsmentioning

confidence: 99%

A palladium(0)–threonine complex immobilized on the surface of magnetic mesocellular foam: an efficient, stable, and magnetically separable nanocatalyst for Suzuki, Stille, and Heck cross-coupling reactions

Shirvandi

Ghorbani‐Choghamarani

Rostami

2023

RSC Adv.

Self Cite

View full text Add to dashboard Cite

show abstract

“…In the FT‐IR spectrum of M‐MCM‐41@n‐Pr‐Cl, the peaks detected at 2,852 and 2,923 cm −1 correspond to the aliphatic C‐H stretching vibration of CPTMS (Figure 1b). 52 In the FT‐IR spectrum analysis of M‐MCM‐41@TU nanoparticles, the vibrational modes of C=O and C=C bonds were identified by the bands located at 1,625 and 1,568 cm −1 , respectively 56 . In addition, the stretching vibration of the carbon‐nitrogen bond appeared at 1,407 cm −1 , indicating effective attachment of the 5,6‐dimethylthiouracil ligand (Figure 1c).…”

Section: Resultsmentioning

confidence: 96%

“…52 In the FT-IR spectrum analysis of M-MCM-41@TU nanoparticles, the vibrational modes of C=O and C=C bonds were identified by the bands located at 1,625 and S C H E M E 1 Synthesis of M-MCM-41@TU-ZrO 1,568 cm À1 , respectively. 56 In addition, the stretching vibration of the carbon-nitrogen bond appeared at 1,407 cm À1 , indicating effective attachment of the 5,6-dimethylthiouracil ligand (Figure 1c). The shift of C-N and C=O peaks to a lower frequency indicates the formation of the ZrO complex on the surface of M-MCM-41 (Figure 1d).…”

Section: Characterization Of M-mcm-41@tu-zromentioning

confidence: 99%

Immobilized zirconium‐thiouracil complex on MCM‐41 magnetic mesoporous as a recyclable nanocatalyst for carbon‐sulfide bond formation

Shirvandi,

Rostami

2023

Applied Organom Chemis

Self Cite

View full text Add to dashboard Cite

The synthesis and characterization of MCM‐41 magnetic mesoporous material, which has been modified with zirconium‐thiouracil complex (M‐MCM‐41@TU‐ZrO), has been conducted and thoroughly analyzed using an array of techniques such as X‐ray diffraction (XRD), energy‐dispersive X‐ray spectroscopy (EDX), elemental mapping, scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FT‐IR), Brunauer‐Emmett‐Teller (BET), inductively coupled plasma‐optical emission spectrometry (ICP‐OES), thermogravimetric analysis (TGA) and vibrating sample magnetometer (VSM). The catalytic performance of M‐MCM‐41@TU‐ZrO was tested in the synthesis of phenyl aryl sulfides through a three‐component coupling reaction of aryl halides/phenolic esters with phenylboronic acid and sulfur powder in the presence of a base in PEG200 at 80–90°C. Also, the synthesis of symmetrical diaryl sulfides using aryl halides and sulfur powder and M‐MCM‐41@TU‐ZrO as a nanocatalyst in dimethyl sulfoxide at 120°C was investigated. A major novelty is that this is the first time that a highly efficient magnetically recyclable zirconium nanocatalyst is used for the synthesis of unsymmetrical diaryl sulfides in the presence of arylboronic acid/S8 system as thiolating agent and phenolic esters as cross‐coupling partners. The other advantages of this method are as follows: (a) the structurally diverse phenyl aryl sulfides have been synthesized in good to high yields in PEG as a green solvent; (b) starting materials, sulfur source, and catalyst are commercially available, cheap, non‐toxic, and chemically stable; and (c) M‐MCM‐41@TU‐ZrO nanocatalyst was easily removed from the reaction mixture using an external magnet and reused numerous times without any significant change in activity.

show abstract

Synthetic Methods for Diarylamines and Triarylamines

2023

Methods and Strategies for C–N Bond Formation Reactions

View full text Add to dashboard Cite

Molecules that contain secondary amines and tertiary amines play important roles in many different areas of chemistry, for example in biologically important natural products and pharmaceuticals; also, they have lots of applications in materials research. Different routes have been reported for the selective synthesis of secondary amines and tertiary amines, including the Ullmann reaction and Buchwald–Hartwig amination. These methods suffer from several drawbacks including a lack of tolerance towards functional groups and harsh reaction conditions. For these reasons, the development of a convenient and efficient method for the synthesis of secondary amine and tertiary amine derivatives takes on a significant meaning. This book, and especially this chapter, aims to provide a concise overview of methods found in both basic and applied chemical research. In this chapter, a brief history of secondary and tertiary amine synthesis is presented, followed by recent improvements and extensions of the methodology.

show abstract

Magnetic mesocellular foams with nickel complexes: as efficient and reusable nanocatalysts for the synthesis of symmetrical and asymmetrical diaryl chalcogenides

Abstract: Magnetic mesocellular foams (M-MCF) silica nanoparticles were prepared via inserting magnetic nanoparticles into the pores of mesocellular foam, then its inner surface was functionalized with methionine-nickel complex (M-MCF@Met-Ni). The structure...

Cited by 4 publications

References 78 publications

A palladium(0)–threonine complex immobilized on the surface of magnetic mesocellular foam: an efficient, stable, and magnetically separable nanocatalyst for Suzuki, Stille, and Heck cross-coupling reactions

A palladium(0)–threonine complex immobilized on the surface of magnetic mesocellular foam: an efficient, stable, and magnetically separable nanocatalyst for Suzuki, Stille, and Heck cross-coupling reactions

Immobilized zirconium‐thiouracil complex on MCM‐41 magnetic mesoporous as a recyclable nanocatalyst for carbon‐sulfide bond formation

Synthetic Methods for Diarylamines and Triarylamines

Contact Info

Product

Resources

About