Copper (II) mediated arylation with aryl boronic acids for the N-derivatization of pyrazole libraries

S. Rossiter, C.K. Woo, B. Hartzoulakis, G. Wishart, L. Stanyer, J.W. Labadie, D.L. Selwood

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)

Abstract

A N-derivatized 3-dimethylaminopropyloxypyrazole library was prepared using solution-phase parallel synthesis. The library was designed using physicochemical constraints designed to remove non-membrane-permeable molecules. Cupric acetate-mediated N-arylation with aryl boronic acids proceeded regioselectively to form the N-2-substituted derivatives. The presence of the 3-dimethylaminopropyloxy group was found to completely control the regioselectivity of the arylation. Presence of a dimethylaminoethyloxy or dimethylaminobutyloxy group gave a lesser degree of regioselectivity. The scope of the method as applied to library synthesis is discussed.
Original languageEnglish
Pages (from-to)385-390
JournalJournal of Combinatorial Chemistry
Volume6
Issue number3
DOIs
Publication statusPublished - 2004

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