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Org Biomol Chem. 2013 Nov 28;11(44):7653-7. doi: 10.1039/c3ob41872c. Epub 2013 Oct 16.

Efficient and regioselective nickel-catalyzed [2 + 2 + 2] cyclotrimerization of ynoates and related alkynes.

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  • 1Department of Chemistry, University of Cincinnati, P.O. Box 210172, Cincinnati, Ohio 45221-0172, USA. hairong.guan@uc.edu.

Abstract

A nickel-based catalytic system has been developed for [2 + 2 + 2] cyclotrimerization of various alkynes, especially ynoates. This catalytic system enables facile construction of substituted aromatic compounds in excellent yields with high regioselectivity.

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