Pseudo‐Crown Ether‐based Host for the Recognition of Pd2+ and Fe3+ ions in Water DOI

Sanjeev Kumar,

Prabhpreet Singh

ChemistrySelect, Journal Year: 2023, Volume and Issue: 8(43)

Published: Nov. 14, 2023

Abstract The development of coordination‐based host for the detection heavy metal ions in aqueous medium is a challenging task. We report 1,8‐naphthalimide‐based pseudo‐crown ether which possess hexaethylene glycol chain selective binding Pd 2+ and Fe 3+ with higher affinity over ions. lowest limits are 2.5 nM 15 nM, respectively. Job's Hill plot showed 1 : stochiometric complexation between NHG :M n+ constants 1.4×10 4 M −1 (Pd ) 1.5×10 3 (Fe ). CIE 90 % blue colour purity CHCl solution. In solid‐state, blue‐green 52.7 green high quantum yield (ϕ=0.0643). flake‐like aggregates transformed into spherical structure upon interaction as confirmed by microscopic light scattering studies.

Language: Английский

Metal-free C(sp3)–H functionalization (C–C and C–N bond formation) of 1,2,3,4-tetrahydroacridines using deep eutectic solvents as catalyst and reaction medium DOI
Thangellapally Shirisha, Subir Majhi, Balasubramanian Sridhar

et al.

Organic & Biomolecular Chemistry, Journal Year: 2024, Volume and Issue: 22(7), P. 1434 - 1440

Published: Jan. 1, 2024

A simple and efficient protocol for the addition of azodicarboxylates (C–N bond) maleimides (C–C at C4-position 1,2,3,4-tetrahydroacridines was achieved under metal-free conditions using deep eutectic solvents with high atom efficiency, regioselectivity, yields.

Language: Английский

Citations

5
One‐Walled Phthalimide Extended Calix[4]Pyrrole‐Based Supramolecular Adsorbent for Alleviating Nitrate From Simulated Water DOI Open Access
Ishfaq Ahmad Rather, Suhail Ayoub Khan, Rashid Ali

et al.

ChemistrySelect, Journal Year: 2025, Volume and Issue: 10(5)

Published: Jan. 30, 2025

Abstract In this investigation, meso ‐substituted one‐walled phthalimide appended calix[4]pyrrole ( m Pth–C4P) was prepared from pthalimide functionalized dipyrromethane (DPM, 4 ), acetone, and freshly distilled pyrrole via both conventional as well green protocols utilizing the deep eutectic solvent (DES) of N,N' ‐dimethyl urea (DMU) & l ‐(+)‐tartaric acid (TA) in an appropriate ratio 7:3. order to lessen nitrate (NO 3 − ) ion endowed eutrophication peril, Pth–C4P effectively employed a supramolecular adsorbent for sequestration NO aquatic phase. The extensively characterized by FTIR, 1 H‐NMR, SEM–EDX, elemental mapping corroborate synthesis adsorption ion. surface area found be 11.465 2 g −1 pore size 3.2 nm, pointed out mesoporous nature Pth–C4P. Batch methodology exploited detailing influence process parameters on %efficiency capacity. demonstrated excellent competence (> 91%) within 16 min [NO ] 20 mg L , which translates into good pseudo‐second rate constant value 0.026 . Freundlich model best‐fit pointing multilayer adsorption. maximum saturation capacity 239.03 ‒1 at 298 K, is far better than most reported adsorbents indicating potential confiscate dynamics appraisal elucidated favor uptake with intraparticle liquid film diffusion models governing reaction. Thermodynamic suggested that spontaneous, favorable, exothermic harmony isotherm studies. can used consecutively up cycles along real water > 80% uptake. All these results established efficacious scavenger simulated water.

Language: Английский

Citations

0
A facile catalyst-free one-pot three component synthesis of pharmacologically important indole-centered 4H-chromenes in a deep eutectic solvent (DES) DOI

Shakeel Alvi,

Manawwer Alam, Rashid Ali

et al.

Journal of Molecular Liquids, Journal Year: 2023, Volume and Issue: 390, P. 122951 - 122951

Published: Aug. 30, 2023

Language: Английский

Citations

10
A Facile Deep Eutectic Solvent (DES) Mediated Green Approach for the Synthesis of Fluorescein and Phenolphthalein Dyes DOI
Ishfaq Ahmad Rather, Rashid Ali

ChemistrySelect, Journal Year: 2023, Volume and Issue: 8(12)

Published: March 21, 2023

Abstract Owing to the giant significance of organic dyes in both analytical as well supramolecular chemistry, here, we report an efficient and green methodology for preparation indicator dyes, namely fluorescein phenolphthalein. This particular method involves inexpensive, reusable, biodegradable deep eutectic solvent (DES) choline chloride (ChCl) zinc (ZnCl 2 ) a ratio 1 : 2, furnish corresponding with appropriate stoichiometry easily accessible starting materials. Strikingly, this procedure, DES played two‐fold role catalyst was efficiently recycled four successive runs no substantial cascading yields anticipated products. simple yet environmentally realistic protocol, our best knowledge, is first method, whereby has been employed successful any dye molecule date. Hopefully, novel procedure dye(s) synthesis will be much importance not only from researchers perspective, but it also provide new way undergraduate postgraduate level experiments.

Language: Английский

Citations

2
Ce-Mn-binuclear LDH based-Cu complex as a potent nanocatalyst for green-synthesis of spiroacridineindoletriones: a comparative study DOI

Samira Javadi,

Davood Habibi

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: July 18, 2024

Abstract The Ce-Mn binuclear LDH was prepared at four different molar ratios of Ce to Mn (1:1, 1:2, 1:3 and 1:4), modified with both 3-chloropropyltrimethoxysilane (CPTMS) andN-amino-phthalimide (NAP), complexed Cu(II), characterized by the FT-IR, ICP, XPS, XRD, BET, UV/Vis, EDX, SEM, SEM-mapping, TEM, TGA-DTA techniques. BET UV-vis techniques showed that 1:4 ratio is best ratio, therefore it used as a heterogeneous nanocatalyst for green synthesis fourteen spiro[acridine-indole]triones from three-component condensation reaction isatin, aniline, 1,3-diketone in mild conditions. advantages this method include absence harmful organic solvents, easy separation catalyst products, rapid achievement excellent yields. Furthermore, activity maintained even after consecutive runs without significant loss activity.

Language: Английский

Citations

0
Facile Synthesis of Functionalized Quinolinones in Greener Reaction Medium and Their Photophysical Properties DOI
Pari Keerthana,

Sundararajan Suresh,

Fazlur‐Rahman Nawaz Khan

et al.

Organic & Biomolecular Chemistry, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

A facile and green chemical approach was successfully developed to construct functionalized quinolinones utilizing substituted alcohols, alkyl acetoacetate, α-bromo ketones. Various bearing either electron-rich or electron-deficient groups at different positions were synthesized in moderate good yields under mild reaction conditions. The plausible mechanistic pathway for this transformation is supported by experimental evidence control experiments. This simple synthesizing could open new avenues discovering novel biological pharmaceutical compounds. use of affordable nickel catalysts, conditions, operational simplicity, high atom economy are attractive features method. Furthermore, the synthetic efficiency has been demonstrated through gram-scale Our research also provides valuable insights into photophysical properties derivatives. Notably, compound 6n exhibited highest Stokes shift (216 nm) DCM solvent. compounds 5d 6j showed positive solvatochromism, displaying a stronger emission as solvent polarity increased. Additionally, displayed aggregation-induced (AIE) DMSO : water mixture, making it suitable security ink, highlighting its potential applications various fields.

Language: Английский

Citations

0
Comparative study of cerium-manganese ratios in the design of Ce-Mn-binuclear LDH-based Cu complex: a potent nanocatalyst for the green synthesis of spiro[acridine-9,3’-indole]triones DOI Creative Commons

Samira Javadi,

Davood Habibi

Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)

Published: Nov. 4, 2024

The Ce-Mn binuclear LDH was prepared at four different molar ratios of Ce to Mn (1:1, 1:2, 1:3, and 1:4), modified with both 3-chloropropyltrimethoxysilane (CPTMS) N-amino-phthalimide (NAP), complexed Cu(II), characterized by the FT-IR, ICP, XPS, XRD, BET, UV/Vis, EDX, SEM, SEM-mapping, TEM, TGA-DTA techniques. UV-vis techniques showed that 1:4 ratio is best, therefore it used as a heterogeneous nanocatalyst for green synthesis fourteen spiro[acridine-indole]triones from three-component condensation reaction isatin, aniline, 1,3-diketone in mild conditions. advantages this method include absence harmful organic solvents, easy separation catalyst products, rapid achievement excellent yields. Furthermore, activity maintained even after consecutive runs without significant loss activity.

Language: Английский

Citations

0
Synthesis of C4-Functionalized 1,2,3,4-Tetrahydroacridine-based Pfitzinger Acid Derivatives in Deep Eutectic Solvent and their Biological Evaluation as Dual Cholinesterase and α-Glucosidase Inhibitors DOI
Thangellapally Shirisha, Subir Majhi, K. Divakar

et al.

New Journal of Chemistry, Journal Year: 2024, Volume and Issue: 49(3), P. 1072 - 1082

Published: Dec. 12, 2024

Herein, we report an efficient strategy for the synthesis of C4-functionalized novel Pfitzinger acid derivatives via C(sp 3 )–H bond functionalization.

Language: Английский

Citations

0
Pseudo‐Crown Ether‐based Host for the Recognition of Pd2+ and Fe3+ ions in Water DOI

Sanjeev Kumar,

Prabhpreet Singh

ChemistrySelect, Journal Year: 2023, Volume and Issue: 8(43)

Published: Nov. 14, 2023

Abstract The development of coordination‐based host for the detection heavy metal ions in aqueous medium is a challenging task. We report 1,8‐naphthalimide‐based pseudo‐crown ether which possess hexaethylene glycol chain selective binding Pd 2+ and Fe 3+ with higher affinity over ions. lowest limits are 2.5 nM 15 nM, respectively. Job's Hill plot showed 1 : stochiometric complexation between NHG :M n+ constants 1.4×10 4 M −1 (Pd ) 1.5×10 3 (Fe ). CIE 90 % blue colour purity CHCl solution. In solid‐state, blue‐green 52.7 green high quantum yield (ϕ=0.0643). flake‐like aggregates transformed into spherical structure upon interaction as confirmed by microscopic light scattering studies.

Language: Английский

Citations

0