Synthesis 2019; 51(07): 1603-1610
DOI: 10.1055/s-0037-1609636
paper
© Georg Thieme Verlag Stuttgart · New York

Nickel-Catalyzed Decarboxylative Coupling of Alkynyl Carboxylates with Aryl Tosylates and Mesylates

Anna Howard §
,
Samantha Klemann §
,
Sarah Kolling §
,
Katrina Little §
,
Erin Plasek §
,
Dipannita Kalyani*
St. Olaf College, Department of Chemistry, 1520 St. Olaf Ave., Northfield, MN 55057, USA   Email: kalyani@stolaf.edu
› Author Affiliations
This work was supported by the NSF (CHE-1554630) Research Corporation for Science Advancement, Organic Syntheses Inc. PUI Summer Research Grant, and St. Olaf College.
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Publication History

Received: 29 September 2018

Accepted after revision: 07 October 2018

Publication Date:
20 November 2018 (online)


§ These authors contributed equally

Abstract

A method for the nickel-catalyzed coupling of alkynyl carboxylates or acids with aryl tosylates and mesylates is described. Electronically varied carboxylates and aryl electrophiles participate in these transformations to afford the desired diarylalkyne products. In general, electrophiles bearing an extended π-system lead to products in higher yields than sulfonates with only one aromatic ring.

Supporting Information