Journal
ORGANIC LETTERS
Volume 14, Issue 4, Pages 964-967Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ol2029492
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- University of California (UC)
- Cancer Research Coordinating Committee
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A single Cu(II) catalyst without the addition of ligand or base couples a diverse range of nitrogen sources with alkynes and aldehydes bearing alkyl, halogenated, silyl, aryl, and heteroaryl groups. The first example of a copper-catalyzed alkynylation involving p-toluenesulfonamide provides high yields of N-Ts-protected propargylamines. The superior activity of copper(II) triflate also allows this three-component alkynylation to incorporate a ketone.
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