Pd-based nanoparticles: Plant-assisted biosynthesis, characterization, mechanism, stability, catalytic and antimicrobial activities.

The decline of fossil- and ore-based materials is calling for more recycling of waste into new materials Here, I review the recycling of ashes from biomass into reagents for chemical synthesis and biodiesel production Biomass includes banana, pomegranate, rice, papaya, century plant, water hyacinth, bael fruit, nilgiri, mango, onion, muskmelon fruit, pomelo, lemon fruit, teak and tamarind Chemical reactions include Knoevenagel condensation, Suzuki–Miyaura cross-coupling, Sonogashira reaction, Dakin reaction, Henry reaction, Ullmann coupling, Pd-catalyzed homocoupling, aromatic bromination, hydroxylation of arylboronic acids, hydration of nitriles and azide–alkyne click reaction The synthesis of peptide bonds, disulfides, aminochromenes, carboxycoumarins, diazohydroxy esters, imidazopyridines, pyranopyrazoles, chalcones, flavones and bisenols is described

Ashes from organic waste as reagents in synthetic chemistry: a review

Immobilization of platinum-cobalt and platinum-nickel bimetallic nanoparticles on pomegranate peel extract-treated reduced graphene oxide as electrocatalysts for oxygen reduction reaction

Synthesis of Symmetrical Diorganyl Disulfides Employing WEB as an Eco-friendly Oxidative System

α,α′-bis(substituted benzylidene)cycloalkanones were efficiently prepared from variously substituted aldehydes and cycloalkanones in water by using ash of pomegranate peels (APP) as a catalyst. The APP-catalyst was obtained from bio-waste by simple thermal treatment to dry peels of pomegranate fruit and formation of its active phase was confirmed by FT-IR, XRD, XRF, EDX, SEM, DSC-TGA and BET techniques. The analysis revealed that the present catalyst has basic sites which promote the synthesis of desired products. The main attractions of our protocol are utilization of highly abundant bio-waste-derived catalyst and good-to-excellent yield in shortest reaction time. This green protocol was further extended for structurally diverse 2-arylidene-1-tetralones by condensation of equimolar quantity of aromatic aldehydes and 1-tetralone at low temperature. The catalyst could be quantitatively recovered and reused effectively for five times.

Ash of pomegranate peels (APP): A bio-waste heterogeneous catalyst for sustainable synthesis of α,α′-bis(substituted benzylidine)cycloalkanones and 2-arylidene-1-tetralones

WEPA: a bio-derived medium for added base, π-acid and ligand free Ullmann coupling of aryl halides using Pd(OAc)2.

Pd(5%)-KIT-6, Pd(5%)-SBA-15 and Pd(5%)-SBA-16 catalysts in water extract of pomegranate ash: A case study in heterogenization of Suzuki-Miyaura reaction under external base and ligand free conditions

Palladium‐catalysed room‐temperature Suzuki–Miyaura coupling in water extract of pomegranate ash, a bio‐derived sustainable and renewable medium

Water extract of pomegranate ash as waste-originated biorenewable catalyst for the novel synthesis of chiral tert‑butanesulfinyl aldimines in water

Water extract of pomegranate ash–I2 as sustainable system for external oxidant/metal/catalyst-free oxidative iodination of (hetero)arenes

Bandameeda Ramesh Naidu

Papers

WEPA: a bio-derived medium for added base, π-acid and ligand free Ullmann coupling of aryl halides using Pd(OAc)2.

Pd(5%)-KIT-6, Pd(5%)-SBA-15 and Pd(5%)-SBA-16 catalysts in water extract of pomegranate ash: A case study in heterogenization of Suzuki-Miyaura reaction under external base and ligand free conditions

Palladium‐catalysed room‐temperature Suzuki–Miyaura coupling in water extract of pomegranate ash, a bio‐derived sustainable and renewable medium

Water extract of pomegranate ash as waste-originated biorenewable catalyst for the novel synthesis of chiral tert‑butanesulfinyl aldimines in water

Water extract of pomegranate ash–I2 as sustainable system for external oxidant/metal/catalyst-free oxidative iodination of (hetero)arenes