An economical synthesis of benzodiazepines using ACT@IRMOF core-shell as a potential eco-friendly catalyst through the activated carbon of thymus plant (ACT).

Here, a straightforward design is employed to synthesize a nanocatalyst based on a carbon-activated modified metal-organic framework using the solvothermal method. This work presents a simple and practical approach for producing the activated carbon derived from the Thymus plant (ACT) modified with amine-functionalized isoreticular metal-organic framework-3 (IRMOF-3) to create an ACT@IRMOF-3 core-shell structure. Successful functionalization was confirmed through N adsorption isotherms, FT-IR, FE-SEM, TEM, EDS, elemental mapping, TGA, and XRD analysis.

Pd anchored to layered double hydroxide modified with chitosan and Echinophora platyloba extract as a nanocatalyst for the formylation of aryl iodides with formic acid.

The novel Zn-Cu-Al layered double hydroxide (LDH) encapsulated within a chitosan/glutaraldehyde matrix, designated as LDH@Cs/G@Pd, was synthesized through simplified methodologies for the preparation of aromatic aldehyde derivatives. Formic acid served as the carbon monoxide source and hydrogen donor, while chitosan/glutaraldehyde acted as the linking agent between the substrate and palladium nanoparticles, with Echinophora platyloba extract functioning as the reducing agent for palladium. The characterization of LDH@Cs/G@Pd was conducted using a variety of analytical techniques, including Fourier-transform infrared spectroscopy (FT-IR), energy-dispersive X-ray spectroscopy (EDS), field-emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), thermogravimetric analysis (TGA), X-ray diffraction (XRD), Brunauer-Emmett-Teller (BET) surface area analysis, and inductively coupled plasma optical emission spectroscopy (ICP-OES).

Green and efficient synthesis of 5-amino-1-pyrazole-5-carbonitriles utilizing novel modified LDH.

This research introduced a novel nano catalyst, LDH@PTRMS@DCMBA@CuI, developed from nano copper immobilized on a layered double hydroxide modified with a new type of sulfonamide: , -dicarbamimidoylbenzene-1,3-disulfonamide (DCMBA). This catalyst demonstrated significant activity and selectivity in synthesizing 5-amino-1-pyrazole-5-carbonitrile derivatives. The derivatives were produced a three-component one-pot reaction combining benzaldehydes, malononitrile, and phenyl hydrazine in HO/EtOH solvent at 55 °C.

Correction: Chlorosulfonic acid coated on porous organic polymer as a bifunctional catalyst for the one-pot three-component synthesis of 1,8-naphthyridines.

[This corrects the article DOI: 10.1039/D2RA05070F.].

Correction: A sustainable protocol for selective alcohols oxidation using a novel iron-based metal organic framework (MOF-BASU1).

[This corrects the article DOI: 10.1039/D3RA03058J.].

Facile synthesis of novel acidic modified magnetic graphene oxide and its application in the green synthesis of pyrimido[4,5-b]quinolines.

This study aimed to create an innovative acidic nano catalyst capable of producing pyrimido[4,5-b]quinolines under environmentally friendly conditions. To achieve this objective, 1,3-benzenedisulfonyl amide (BDSA) was immobilized onto the surface of magnetic graphene oxide (GO/FeO@PTRMS@BDSA@SOH), and its surface was acidified using chlorosulfonic acid. The synthesized catalyst's structure was thoroughly examined and verified through various analyses, including FTIR, EDX, elemental mapping, FESEM, XRD, TGA, and DSC.

A facile one-pot synthesis of tetrahydrobenzo[]pyrans and 2-amino-4-chromenes under green conditions.

This research developed a new nanocatalyst by incorporating nanocopper iodide onto the surface of a layered double hydroxides modified. This new nanocatalyst enables the green synthesis of tetrahydrobenzo[]pyrans and 2-amino-4-chromene derivatives through a one-pot, three-component reaction, demonstrating remarkable activity and selectivity. Key advantages of this method include increased products yield (86-96%), rapid reaction kinetics (5-23 minutes), low reaction temperature (40 °C), synthesis of new products, straightforward purification methods, catalyst recyclability (up to 4 cycles), and solvent-free conditions.

Pd NPs decorated on crosslinked sodium alginate modified iron-based metal-organic framework Fe(BTC) as a green multifunctional catalyst for the oxidative amidation.

The primary objective of this investigation was to develop a new nanocatalyst that could produce amides by oxidative amidation of benzyl alcohol, thereby reducing its environmental harm. To achieve this, Pd nanoparticle-immobilized crosslinked sodium alginate-modified iron-based metal-organic framework Fe(BTC) (Fe(BTC)@SA/ED/Pd), with excellent activity and selectivity in modified oxidative amidation of benzyl alcohol with amines, has been described. Crosslinked sodium alginate was modified on iron-based metal-organic framework Fe(BTC).

Copper Immobilized on Modified LDHs as a Novel Efficient Catalytic System for Three-Component Synthesis of Pyrano[2,3-]pyrimidine and pyrazolo[4',3':5,6]pyrano[2,3-]pyrimidine Derivatives.

A novel catalyst based on layered double hydroxides coated with copper nitrate [LDH@(3-chloropropyl)trimethoxysilane@N1,N4-(4,6-diamino-1,3,5-triazin-2-yl)benzene-1,4-disulfonamide@Cu] was successfully synthesized. The structure of the new synthesized catalyst was investigated and confirmed using different analytical techniques, such as Fourier-transform infrared spectroscopy (FTIR), energy-scattered X-ray spectroscopy (EDX) mapping, X-ray diffraction (XRD), field-emission scanning electron microscopy (FESEM), and heat gravity/heat derivatization (TGA/DSC). The skilled catalyst proved its efficiency for one-pot three-component synthesis of pyrano[2,3-]pyrimidine and new dihydropyrazolo[4',3':5,6]pyrano[2,3-]pyrimidine-dione derivatives.

Green synthesis of quinazoline derivatives using a novel recyclable nano-catalyst of magnetic modified graphene oxide supported with copper.

A new magnetic nano-catalyst system based on graphene oxide was designed and manufactured (GO@FeO@3-chloropropyltrimethoxysilane@(Z)-N'-(2-hydroxybenzylidene)-4-(pyridin-4-yl)benzohydrazide@Cu(II)), and it was checked and confirmed by various analyzes such as FTIR, XRD, EDX, MAPPING, TGA/DSC, VSM and FESEM. This nano-catalyst was used in the three-component one-pot synthesis of quinazoline derivatives. The products were obtained using this efficient catalyst with high efficiency in short time and solvent-free conditions.

A sustainable protocol for selective alcohols oxidation using a novel iron-based metal organic framework (MOF-BASU1).

The selective oxidation of active and inactive alcohol substrates is a highly versatile conversion that poses a challenge in controlling the functionality and adjustments on MOFs. On the other hand, it offers an attractive opportunity to expand their applications in designing the next generation of catalysts with improved performance. Herein, a novel iron-based MOF containing sulfonamide (MOF-BASU1) has been fabricated by the reaction of 1,3-benzene disulfonylchloride linker and FeCl·6HO.

Green synthesis of thiourea derivatives from nitrobenzenes using Ni nanoparticles immobilized on triazine-aminopyridine-modified MIL-101(Cr) MOF.

Nanohybrid metal-organic frameworks (MOF) have recently been considered next-generation catalysts regarding their unique features like large surface-to-volume ratio, tailorable geometry, uniform pore sizes, and homogeneous distribution of active sites. In this report, we address the triazine-aminopyridine-modified 3D Cr-centred MOF MIL-101(Cr)-NH following a post-synthetic modification approach. The excellent chelating ability of triazine-aminopyridine was applied to immobilize Ni ions over the host matrix MOF.

CuI nanoparticle-immobilized on a hybrid material composed of IRMOF-3 and a sulfonamide-based porous organic polymer as an efficient nanocatalyst for one-pot synthesis of 2,4-diaryl-quinolines.

As a significant class of synthetic and natural products with multiple biological activities, quinolines are used in medical and electronic devices. In this study, a novel method is presented to synthesize 2,4-diarylquinoline derivatives a simple one-pot multicomponent reaction between phenylacetylenes, aniline derivatives, and aldehydes in CHCN using IRMOF-3/PSTA/Cu. Notably, polymer/MOF is stabilized through a reaction between a sulfonamide-triazine-based porous organic polymer [poly (sulfonamide-triazine)](PSTA) and an amino-functionalized zinc metal-organic framework (IRMOF-3).

Cu(ii) immobilized on poly(guanidine-sulfonamide)-functionalized Bentonite@MgFeO: a novel magnetic nanocatalyst for the synthesis of 1,4-dihydropyrano[2,3-]pyrazole.

In this paper, we aim at synthesizing a new nanocomposite material in which bentonite acts as a nucleation site for MgFeO nanoparticles precipitation in the attendance of an external magnetic field (MgFeO@Bentonite). Moreover, poly(guanidine-sulfonamide), as a novel kind of polysulfonamide, was immobilized on the surface of the prepared support (MgFeO@Bentonite@PGSA). Finally, an efficient and environment-friendly catalyst (containing nontoxic polysulfonamide, copper, and MgFeO@Bentonite) was prepared by anchoring a copper ion on the surface of MgFeO@Bentonite@PGSAMNPs.

Synthesis, properties, and application of the new nanocatalyst of double layer hydroxides in the one-pot multicomponent synthesis of 2-amino-3-cyanopyridine derivatives.

A new heterogeneous nanocatalyst LDH@3-chloropyltrimethoxysilane@1,3-benzenedisulfonyl amine@Cu (LDH@TRMS@BDSA@Cu) was synthesized and confirmed by analyzes such as Fourier transform infrared spectroscopy, Field Emission Scanning Electron Microscopy, energy scattered X-ray spectroscopy (EDX), elemental mapping, X-ray diffraction analysis, heat gravity/heat derivatization (TGA) and differential scanning calorimetry. The newly synthesized nanocatalyst effectively catalyzed the reaction between different aryl aldehydes, malononitrile, different acetophenones and ammonium acetate in solvent-free conditions and they were converted into 2-amino-3-cyanopyridine derivatives with high efficiency. The reaction showed advantages such as simplicity, high stability, environmental friendliness, excellent efficiency and short time.

Ni(ii) immobilized on poly(guanidine-triazine-sulfonamide) (PGTSA/Ni): a mesoporous nanocatalyst for synthesis of imines.

Mesoporous materials have been the subject of intense research regarding their unique structural and textural properties and successful applications in various fields. This study reports a novel approach for synthesizing a novel porous polymer stabilizer through condensation polymerization in which FeO magnetic nanoparticles (FeO MNPs) are used as hard templates. Using this method allowed the facile and fast removal of the template and mesopores formation following the FeO MNPs.

Chlorosulfonic acid coated on porous organic polymer as a bifunctional catalyst for the one-pot three-component synthesis of 1,8-naphthyridines.

The synthesis of six-membered oxygen- and nitrogen-containing heterocycles has been regarded as the most fundamental issue in organic chemistry and the chemical industry because these heterocycles are used in producing high-value products. In this study, an efficient, economic, sustainable, and green protocol for their multicomponent synthesis has been developed. The one-pot direct Knoevenagel condensation-Michael addition-cyclization sequences for the transformation of aromatic aldehydes, malononitrile, and 2-aminopyridine generate the corresponding 1,8-naphthyridines over a novel mesoporous bifunctional organocatalyst supported cholorosulfonic acid [poly(triazine-benzene sulfonamide)SOH (PTBSA-SOH)] under ambient conditions.

Synthesis of calixresorcarenes using magnetic poly triazine-benzene sulfonamide-SOH.

The purpose of this work is to develop a magnetically recyclable immobilized base catalyst for the green synthesis of calixresorcarenes. To achieve this, poly triazine-benzene sulfonamide (PTBSA) has been coated on magnetic FeO nanoparticles and subsequently chlorosulfonic acid has been supported to obtain FeO@PTBSA-SOH. The structure of nano-FeO@PTBSA-SOH was characterized by TEM, XRD, FT-IR, VSM, WDX, EDX, TGA/DSC and FE-SEM.

The preparation, characterization and catalytic activity of Ni NPs supported on porous alginate--poly(-styrene sulfonamide--acrylamide).

Herein, we report the synthesis of nickel nanoparticles under mild conditions using porous alginate--poly(-styrene sulfonamide--acrylamide) as a protecting/stabilizing agent and sodium borohydride as a reducing agent. The porous cross-linked polymeric support was prepared combining the use of sol-gel, nanocasting, and crosslinking techniques, in which the -styrene sulfonamide monomer (PSSA) and ,'-methylene-bis (acrylamide) (MBA) cross-linker underwent copolymerization on the surface of sodium alginate in the presence of a SiO nanoparticle (NP) template (Alg-PSSA--ACA). The prepared catalyst (Alg-PSSA--ACA@Ni) showed high catalytic activity for the one-step synthesis of 1,3,4-oxadiazoles from the reaction of hydrazides and aryl iodides through isocyanide insertion/cyclization.

CuI nanoparticles supported on a novel polymer-layered double hydroxide nanocomposite: an efficient heterogeneous nanocatalyst for the synthesis of bis--arylsulfonamides.

A new type of polymer-layered double hydroxide nanocomposite bearing thiazole moieties was used to support CuI nanoparticles (NPs) as a heterogeneous catalyst for the synthesis of bis--arylsulfonamides. The prepared nanostructured catalyst (LDH@MPS-GMA-TZ-CuI) showed high catalytic activity, as well as excellent recyclability for the preparation of bis--arylsulfonamides the chemoselective reaction of 1,3-disulfonyl chloride and nitroarenes. The superior catalytic activity of the LDH@MPS-GMA-TZ-CuI is related to the high loading of CuI NPs and favorable surface properties.

Click synthesis of 1,2,3-triazoles using copper iodide nanoparticles anchored poly(sulfonamide-thiazole) modified layered double hydroxides/chitosan nanocomposite.

Click synthesis is a class of biocompatible small molecule reactions commonly used in bioconjugation. This research presents a recyclable environmentally-friendly catalyst for 1,2,3-triazoles. To this end, we immobilized poly sulfonamide-thiazole (PST), a new group of sulfonamides, on the surface of layered double hydroxides/chitosan (LDH@CS).

Efficient synthesis of multiply substituted 7H-indeno[2,1-c]quinoline using 7-aminonaphthalene-1,3-disulfonic acid supported on LDHs as catalyst.

The LDHs@Propyl-ANDSA was used as a new catalyst for synthesizing 7H-indeno[2,1-c]quinoline derivatives. The catalyst was integrated according to three-step synthesis. Zn-Cr layered double hydroxides (LDHs) were synthesized with molar ratio 2:1 by the co-precipitation method.

Cu(II)-Schiff base covalently anchored to MIL-125(Ti)-NH as heterogeneous catalyst for oxidation reactions.

MIL-125(Ti)-NH has been modified by reaction of salicylaldehyde with the terephthalate amino groups to form a salicylideneimine that act as ligand of Cu. The success of the postsynthetic modification was assessed by FTIR spectroscopy of the MIL-125(Ti)-NH-Sal-Cu and by analysis by H NMR spectroscopy of the organic linkers upon dissolution of MIL-125(Ti)-NH-Sal-Cu. In comparison with parent MIL-125(Ti)-NH and MIL-125(Ti)-NH-Sal, that exhibit a poor activity, the presence of the Cu-Schiff base complex in MIL-125(Ti)-NH-Sal-Cu catalyst for the oxidation of 1-phenylethanol by tert-butylhydroperoxyde (TBHP, 3 eq.

Effective DABCO-catalyzed synthesis of new tetrazolo[1,5-a]pyrimidine analogs.

In this study, an efficient multicomponent one-pot route is described for the DABCO-catalyzed synthesis of tetrazolo[1,5-a]pyrimidines. This synthesis strategy is based on the reaction of malononitrile and aldehydes with 5-aminotetrazole monohydrate using 1,4-diazabicyclo[2.2.

Facile and efficient approach for the synthesis of spirocyclopropylbarbiturates and 3-substituted-1,1,2,2-tetracyanocyclopropanes using N-halosulfonamides.

The applications of [Formula: see text]-tetrabromobenzene-1,3-disulfonamide [TBBDA], poly(N-bromo-N-ethyl-benzene-1,3-disulfonamide) [PBBS], [Formula: see text]-tetrachlorobenzene-1,3-disulfonamide [TCBDA], and poly(N-chloro-N-ethyl-benzene-1,3-disulfonamide) [PCBS] as novel reagents for the preparation of spirocyclopropylbarbiturates from 2-arylidenemalononitriles and barbituric acids are described. In addition, an effective and simple domino procedure for the synthesis of 3-substituted-1,1,2,2-tetracyanocyclopropanes from carbonyl compounds and malononitrile in a one-pot manner is reported. These reactions involve Michael addition, halogenation, and intramolecular ring-closing (MHIRC) reaction sequences.