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Palladium-catalyzed oxidative homocoupling of pyrazole boronic esters to access versatile bipyrazoles and the flexible metal–organic framework Co(4,4′-bipyrazolate)

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Abstract

A facile route to 4,4′-bipyrazole (H2bpz) and other symmetric bipyrazoles is achieved via the palladium-catalyzed homocoupling of a pyrazole boronic ester in the presence of air and water, enabling us to provide the first crystal structures and evidence of structural phase changes in the bipyrazolate-based metal–organic framework Co(bpz).

Graphical abstract: Palladium-catalyzed oxidative homocoupling of pyrazole boronic esters to access versatile bipyrazoles and the flexible metal–organic framework Co(4,4′-bipyrazolate)

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Article information


Submitted
05 Nov 2019
Accepted
19 Dec 2019
First published
19 Dec 2019

Chem. Commun., 2020, Advance Article
Article type
Communication

Palladium-catalyzed oxidative homocoupling of pyrazole boronic esters to access versatile bipyrazoles and the flexible metal–organic framework Co(4,4′-bipyrazolate)

M. K. Taylor, M. Juhl, G. B. Hadaf, D. Hwang, E. Velasquez, J. Oktawiec, J. B. Lefton, T. Runčevski, J. R. Long and J. Lee, Chem. Commun., 2020, Advance Article , DOI: 10.1039/C9CC08614E

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