ChemInform Abstract: Copper(I)/Copper(II)‐Assisted Tandem Catalysis: The Case Study of Ullmann/Chan—Evans—Lam N1, N3‐Diarylation of 3‐Aminopyrazole. Issue 2 (23rd December 2015)

• Record Type: Journal Article
• Authors: Beyer, Astrid; Castanheiro, Thomas; Busca, Patricia; Prestat, Guillaume
• Is Part Of: ChemInform. Volume 47:Issue 2(2016)
• Page Start: no
• Page End: no
• Publication Date: 2015-12-23
• Subjects: pyrazole derivatives -- amination, N‐alkylation, N‐arylation -- catalysis, phase‐transfer catalysis; Chemistry -- Abstracts -- Periodicals; 540.5
• DOI: 10.1002/chin.201602116
• Languages: English
• ISSNs: 0931-7597

Abstract

Abstract: Regioselective Cu‐catalyzed Ullmann‐type N‐arylation of 3‐aminopyrazoles (I) with aryl iodides and the Chan—Evans‐type coupling of 3‐amino‐1‐aryl‐pyrazole (IIIb) with arylboronic acids proceed with good to excellent yields.