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

A bio-derived sustainable medium based on water extract of pomegranate ash (WEPA) has, for the first time, been developed for the homocoupling of aryl halides under palladium-assistance. Avoiding the requirement of an external base, ligand and π-acid, the use of the proposed renewable medium offers...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2018-10, Vol.54 (87), p.12333-12336
Main Authors: Lakshmidevi, Jangam, Appa, Rama Moorthy, Naidu, Bandameeda Ramesh, Prasad, S Siva, Sarma, Loka Subramanyam, Venkateswarlu, Katta
Format: Article
Language:English
Subjects:
Aromatic compounds
Couplings
Halides
Ligands
NMR
Nuclear magnetic resonance
Palladium
Recyclability
Substrates
Viability
X ray photoelectron spectroscopy
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Summary:A bio-derived sustainable medium based on water extract of pomegranate ash (WEPA) has, for the first time, been developed for the homocoupling of aryl halides under palladium-assistance. Avoiding the requirement of an external base, ligand and π-acid, the use of the proposed renewable medium offers remarkable attributes like wide substrate scope, good to nearly quantitative yields of biphenyls with exceptional chemoselectivity and scale up viability.
ISSN:1359-7345
1364-548X
DOI:10.1039/c8cc06940a