The development of a green and sustainable
synthetic methodology
still remains a challenge across the globe. Encouraging the prevailing
challenge, herein, we have synthesized Pd nanoparticles (Pd NPs) in
a green and environmentally viable route, using the extract of waste
papaya peel without the assistance of any reducing agents, high-temperature
calcination, and reduction procedures. The biomolecules present in
the waste papaya peel extract reduced Pd(II) to nanosize Pd(0) in
a one-pot green and sustainable process. As a catalyst, the new Pd
NPs offer a simple and efficient methodology in direct Suzuki–Miyaura
and Sonogashira coupling with excellent yields under mild reaction
conditions.
The conversion of waste papaya-bark to ash–water extract via low-temperature combustion, and its utilization as an efficient and eco-friendly in situ basic medium for Suzuki–Miyaura cross-coupling reaction at room temperature are reported.
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