A Sustainable Protocol for C=C Bonds Synthesis Using Water Extract of Annona squamosa Fruit Shell Ash (WEASF) DOI
Ashok Ettam,

L. Vaikunta Rao

ChemistrySelect, Journal Year: 2023, Volume and Issue: 8(32)

Published: Aug. 23, 2023

Abstract The use of bioresource‐derived wastes to valuable organic reactions is a new and fascinating trend in the current‐day chemistry which aims at decrease/elimination depleting resources based chemicals. This article discusses sustainable protocol for synthesis C=C bonds via Knoevenagel condensation reaction α‐cyano esters with aldehydes using water extract Annona squamosa fruit shell ash (WEASF) as catalyst. These have been conducted room temperature (RT) aqueous media products are purified by recrystallization. WEASF acts biorenewable base process avoids solvents column‐based purifications products. bio‐derived also showed its high reusability current alternative existing methods making polysubstituted olefins.

Language: Английский

Synthesis of metal oxides/sulfides-based nanocomposites and their environmental applications: a review DOI

Poobana Dharmalingam,

Geetha Palani, Retna Apsari

et al.

Materials Today Sustainability, Journal Year: 2022, Volume and Issue: 20, P. 100232 - 100232

Published: Sept. 16, 2022

Language: Английский

Citations

62
Catalyst-free mechanochemistry as a versatile tool in synthetic chemistry: a review DOI
Bandameeda Ramesh Naidu,

Thondooru Sruthi,

Raghavender Mitty

et al.

Green Chemistry, Journal Year: 2023, Volume and Issue: 25(16), P. 6120 - 6148

Published: Jan. 1, 2023

This article presents a review of the reports on catalyst-free mechanochemical organic transformations and ability to initiate reactions that are extremely difficult/impossible occur is notable advancement process.

Language: Английский

Citations

22
WEPA: a reusable waste biomass-derived catalyst for external oxidant/metal-free quinoxaline synthesisviatandem condensation–cyclization–oxidation of α-hydroxy ketones DOI
Bandameeda Ramesh Naidu, Katta Venkateswarlu

Green Chemistry, Journal Year: 2022, Volume and Issue: 24(16), P. 6215 - 6223

Published: Jan. 1, 2022

WEPA, a waste biomass-derived catalyst, was used to synthesize quinoxalines from aryl/heteroaryl 1,2-diamines and α-hydroxy ketones via metal catalyst/added oxidant-free sequential condensation–cyclization–oxidation process.

Language: Английский

Citations

27
Immobilization of Bacillus amyloliquefaciens protease “Neutrase” as hybrid enzyme inorganic nanoflower particles: A new biocatalyst for aldol-type and multicomponent reactions DOI
Mostafa Mostafavi,

Kazem Mahmoodzadeh,

Zohreh Habibi

et al.

International Journal of Biological Macromolecules, Journal Year: 2023, Volume and Issue: 230, P. 123140 - 123140

Published: Jan. 5, 2023

Language: Английский

Citations

13
Green Synthesis of Zinc Oxide Nanoparticles Using Leaves Extract of Mariposa Christia vespertilionis and its Potential as Anode Materials in Sodium-Ion Batteries (SIBs) DOI

Nurul Atikah Idris,

Hanis Mohd Yusoff, Nurul Hayati Idris

et al.

Arabian Journal for Science and Engineering, Journal Year: 2023, Volume and Issue: 49(1), P. 623 - 635

Published: Oct. 10, 2023

Language: Английский

Citations

12
Dried water extract of pomegranate peel ash (DWEPA) as novel and biorenewable heterogeneous catalyst for biodiesel production and biopotent quinoxalines synthesis DOI
Bandameeda Ramesh Naidu, Katta Venkateswarlu

Bioresource Technology Reports, Journal Year: 2022, Volume and Issue: 18, P. 101107 - 101107

Published: June 1, 2022

Language: Английский

Citations

17
Water extract of pomegranate ash–I2as sustainable system for external oxidant/metal/catalyst-free oxidative iodination of (hetero)arenes DOI Creative Commons
Rama Moorthy Appa, Bandameeda Ramesh Naidu, Derangula Venkateswarlu

et al.

Green Chemistry Letters and Reviews, Journal Year: 2021, Volume and Issue: 14(4), P. 700 - 712

Published: Oct. 2, 2021

Utilization of waste-derived materials for industrially pertinent chemical transformations is highly challenging and offers sustainable solution to waste management. Despite several difficulties in the manufacture aryl iodides (AIs), which are fundamental substrates organic synthesis, we report here, an added oxidant/metal/catalyst/additive problematic solvent-free versatile straightforward protocol synthesis AIs using molecular iodine (I2) water extract pomegranate ash (WEPA). These were performed at room temperature (rt) reactions takes place 5–20 min give 83–99% yields AIs. WEPA was characterized by XPS, EDX, XRF, XRD, FTIR analysis a plausible mechanism has been established based on these analyses along with some control experiments. Further, products purified recrystallization technique. This work intrinsic sustainability, high substrate feasibility, utilization biorenewable catalystytic media, ease execution separation products, oxidant/catalyst/metal additive-free conditions may become one among forefront procedures making The use as media this iodination novelty method be used further in-process (e.g. cross-couplings, nucleophilic reactions, etc.) access fine chemicals.

Language: Английский

Citations

22
Oxidative Iododeborylation Reaction of (Hetero)arylboronic Acids in Water Extract of Pomegranate Ash: A Novel and Sustainable Synthesis of Iodo(hetero)arenes DOI

Jangam Lakshmidevi,

Bandameeda Ramesh Naidu,

S. Siva Sankara Reddy

et al.

Waste and Biomass Valorization, Journal Year: 2022, Volume and Issue: 13(4), P. 2207 - 2216

Published: Jan. 4, 2022

Language: Английский

Citations

11
A rapid-room temperature synthesis of α-cyanoacrylates, α-cyanoacrylonitriles and 4H-pyrans using water extract of pomegranate ash as catalytic media DOI

Jangam Lakshmidevi,

Bandameeda Ramesh Naidu, Katta Venkateswarlu

et al.

Sustainable Chemistry and Pharmacy, Journal Year: 2022, Volume and Issue: 25, P. 100610 - 100610

Published: Feb. 2, 2022

Language: Английский

Citations

9
A quick and low E-factor waste valorization procedure for CuCl-catalyzed oxidative self-coupling of (hetero)arylboronic acid in pomegranate peel ash extract DOI Creative Commons

Jangam Lakshmidevi,

Bandameeda Ramesh Naidu, Katta Venkateswarlu

et al.

Green Chemistry Letters and Reviews, Journal Year: 2022, Volume and Issue: 15(3), P. 529 - 536

Published: July 3, 2022

The application of waste biomass-derived materials to synthetic chemistry is a remarkable achievement, and the use aqueous media further advancement. switch towards earth's abundant metals like cobalt/copper/iron/nickel from precious palladium in C–C coupling reactions also high throughput global sustainability perspective. Herein, we describe CuCl-catalyzed homocoupling (hetero)arylboronic acids (HABAs) water extract pomegranate ash (WEPA) with low E-factor 1.25 without including column chromatographic separation products, which helped understanding effectiveness this method on comparison reported protocols lacking amounts silica gel eluents, however, it was 171.64 by purification. are conducted at room temperature deliver self-coupling products 90–99% yields 10–45 min under metal, ligand, non-renewable base, toxic/problematic organic solvent added oxidant-free conditions. A wide range substrates were screened aryl heteroaryl moieties containing diversified functional groups. substitution rare metals-based catalysts copper, exploration state-of-the-art coupling, biorenewable media, ambient conditions, operational simplicity, excellent biaryls quick noteworthy advantages protocol.

Language: Английский

Citations

9