Simultaneous detection of trace Pb(II), Cd(II) and Hg(II) by anodic stripping analyses with glassy carbon electrode modified by solid phase synthesized iron-aluminate nano particles

Sensors and Actuators B Chemical, Journal Year: 2020, Volume and Issue: 329, P. 129052 - 129052

Published: Oct. 16, 2020

Language: Английский

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Engaging Isatins in Multicomponent Reactions (MCRs) – Easy Access to Structural Diversity

The Chemical Record, Journal Year: 2021, Volume and Issue: 21(4), P. 924 - 1037

Published: Feb. 18, 2021

Abstract Multicomponent reactions (MCRs) are a valuable tool in diversity‐oriented synthesis. Its application to privileged structures is gaining relevance the fields of organic and medicinal chemistry. Isatin, due its unique reactivity, can undergo different MCRs, affording multiple interesting scaffolds, namely oxindole‐derivatives (including spirooxindoles, bis‐oxindoles 3,3‐disubstituted oxindoles) even, under certain conditions, ring‐opening occur that leads other heterocyclic compounds. Over past few years, new methodologies have been described for this important easily available starting material MCRs. In review, we explore these novelties, displaying them according structure final products obtained.

Language: Английский

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Ni–citric acid coordination polymer as a practical catalyst for multicomponent reactions

Scientific Reports, Journal Year: 2021, Volume and Issue: 11(1)

Published: Dec. 28, 2021

Abstract Coordinative polymers (CP) are a subclass of Metal–organic frameworks (MOFs) with porous microstructures which have been widely synthesized in recent years and applied various fields especially catalysis science. In this work nickel citric acid (CA) was prepared as new catalyst (Ni-CP) organic multicomponent reactions. The obtained characterized by SEM, WDX, EDS, AAS, FT-IR, XRD BET analysis. N 2 adsorption–desorption isotherms indicate good surface area for Ni-CP; therefore can be employed an efficient reactions the synthesis polyhydroquinoline 2,3-dihydroquinazolin-4(1H)-one derivatives. Finally, recovered reused several consecutive times.

Language: Английский

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Nanocatalyzed synthetic approach for quinazoline and quinazolinone derivatives: A review (2015–present)

Synthetic Communications, Journal Year: 2022, Volume and Issue: 52(6), P. 795 - 826

Published: Feb. 22, 2022

Quinazolines and their derivative are among the most significant heterocyclic compounds due to several chemical reactivities vital range of biological activity. Although a tremendous number research papers dedicated synthesizing quinazolines derivatives using reaction conditions like expensive catalysts, multistep reactions, high temperature, use base toxic solvents. But moving toward greener approach, nanocatalysts have emerged as potential candidates owing surface area more exposed active sites for reactants which enhances selectivity reduces quantity catalyst requirement. The synthesis quinazoline is mainly limited primary screening eco-friendly nanocatalysts. This review provides importance its enlists various (2015–present) involved in with emphasis on synthetic strategies catalytic performances. will provide an idea rational designing eco-friendly, novel efficient

Language: Английский

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Complexation of guanidino containing l-arginine with nickel on silica-modified Hercynite MNPs: a novel catalyst for the Hantzsch synthesis of polyhydroquinolines and 2,3-Dihydroquinazolin-4(1H)-ones

Research on Chemical Intermediates, Journal Year: 2022, Volume and Issue: 48(6), P. 2641 - 2663

Published: April 5, 2022

Language: Английский

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