Pd@l-asparagine–EDTA–chitosan: a highly effective and reusable bio-based and biodegradable catalyst for the Heck cross-coupling reaction under mild conditions

Nanoscale Advances, Год журнала: 2023, Номер 5(9), С. 2621 - 2638

Опубликована: Янв. 1, 2023

A novel supramolecular Pd( ii ) catalyst supported on chitosan grafted by l -asparagine using EDTA linker was prepared and successfully employed in the Heck cross-coupling reaction to afford corresponding cinnamic acids good excellent yields.

Язык: Английский

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Preparation and Application of Green Sustainable Solvent Cyrene

Chemistry, Год журнала: 2023, Номер 5(4), С. 2322 - 2346

Опубликована: Окт. 21, 2023

The bio-based solvent dihydrolevoglucosenone (Cyrene) is a green and sustainable alternative to petroleum-based dipolar aprotic solvents. Cyrene can be prepared from cellulose in simple two-step process produced variety of yields. compatible with large number reactions the chemical industry applied organic chemistry, biocatalysis, materials graphene lignin processing, etc. It also green, non-mutagenic non-toxic, which makes it very promising for applications. In this paper, we have screened all articles related on Web Science visualised them through Cite Space.

Язык: Английский

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Gate to a parallel universe: utilization of biosurfactants in micellar catalysis

Green Chemistry, Год журнала: 2023, Номер 25(9), С. 3462 - 3468

Опубликована: Янв. 1, 2023

Aqueous solutions of biosurfactant rhamnolipids were utilized in micellar cross-coupling reactions as the reaction media for functionalization aromatic and heteroaromatic molecules, including bioactive compounds special fluorinated species.

Язык: Английский

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A Green Approach to Nucleophilic Aromatic Substitutions of Nicotinic Esters in Cyrene

European Journal of Organic Chemistry, Год журнала: 2024, Номер 27(15)

Опубликована: Янв. 29, 2024

Abstract The green solvent Cyrene TM has emerged as a valuable substitute for conventional polar aprotic organic solvents such DMF, DMSO and NMP (renowned their toxicity environmental concerns). However, in the presence of bases, is prone to polymerization, thus potentially incompatible with reactions where base needed generate reactive nucleophiles. In this study, we developed an efficient synthetic strategy nucleophilic aromatic substitutions nicotinic esters Cyrene. success protocol relies on very short reaction time (only 15 minutes) which prevents polymerization from occurring. Indeed, not only outperformed typical DMF DMSO, but also, being highly soluble water, allowed easy purification desired products by simple precipitation upon addition ice‐water.

Язык: Английский

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Impact of Emerging and Traditional Solvents on Anaerobic Digestion in Biorefinery Processes

ACS Sustainable Chemistry & Engineering, Год журнала: 2025, Номер unknown

Опубликована: Март 3, 2025

Язык: Английский

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Continuous Dihydrolevoglucosenone Recovery Using Commercial Membrane Technology

Organic Process Research & Development, Год журнала: 2025, Номер unknown

Опубликована: Апрель 8, 2025

Язык: Английский

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Investigation of Cyrene organosolv fractionation of softwood biomass and alkaline post-incubation

Chemical Engineering Journal, Год журнала: 2024, Номер 494, С. 153046 - 153046

Опубликована: Июнь 12, 2024

Язык: Английский

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A green Heck reaction protocol towards trisubstituted alkenes, versatile pharmaceutical intermediates

Frontiers in Chemistry, Год журнала: 2024, Номер 12

Опубликована: Июль 10, 2024

The Heck reaction is widely employed to build a variety of biologically relevant scaffolds and has been successfully implemented in the production active pharmaceutical ingredients (APIs). Typically, with terminal alkenes gives high yields stereoselectivity toward

Язык: Английский

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Photochemical Aminochlorination of Alkenes without the Use of an External Catalyst

Chemistry - A European Journal, Год журнала: 2023, Номер 29(45)

Опубликована: Май 31, 2023

Abstract The niche field of photochemistry offers opportunities that are not found in “traditional” ground state chemical pathways. Aminochlorinated derivatives an interesting family 1,2‐difunctionalised compounds provide access to a variety natural products and pharmaceutical active substances. A practical, catalyst‐free chloroamination protocol is described herein, providing intermediates great importance, utilising mild photochemical reaction conditions (370 nm), where N ‐chlorosulfonamides used as both nitrogen chlorine sources. wide olefins, decorated with plethora functional groups, was tested excellent results (28 examples, 18–88 % yield). Mechanistic studies (UV‐Vis, control experiments quantum yield measurement) were also performed.

Язык: Английский

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Carbon-doped carbon nitride with improved photocatalytic performance for visible-light-driven Giese reaction

Molecular Catalysis, Год журнала: 2024, Номер 564, С. 114325 - 114325

Опубликована: Июнь 21, 2024

Язык: Английский

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