Palladium-catalyzed oxidative homocoupling of pyrazole boronic esters to access versatile bipyrazoles and the flexible metal–organic framework Co(4, 4′-bipyrazolate). Issue 8 (3rd January 2020)

• Record Type: Journal Article
• Authors: Taylor, Mercedes K.; Juhl, Martin; Hadaf, Gul Barg; Hwang, Dasol; Velasquez, Ever; Oktawiec, Julia; Lefton, Jonathan B.; Runčevski, Tomče; Long, Jeffrey R.; Lee, Ji-Woong
• Is Part Of: Chemical communications. Volume 56:Issue 8(2020)
• Page Start: 1195
• Page End: 1198
• Publication Date: 2020-01-03
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1039/c9cc08614e
• Languages: English
• ISSNs: 1359-7345

Abstract

Abstract : A facile catalytic protocol achieves the homocoupling of pyrazole boronic esters, enabling access to the structurally-flexible metal–organic framework Co(bpz). Abstract : A facile route to 4, 4′-bipyrazole (H2 bpz) 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).