Beyond Acetylene: Exploring Solvent Stabilization of Calcium Carbide‐derived Acetylide Intermediates and Their Significance in Small Organic Molecule Synthesis

Author:

Hainer Andrew S.1,Lanterna Anabel E.12ORCID,Scaiano Juan C.1ORCID

Affiliation:

1. Department of Chemistry and Biomolecular Sciences University of Ottawa Ottawa, Ontario Canada K1N 6N5

2. School of Chemistry University of Nottingham, University Park Nottingham NG7 2RD UK

Abstract

AbstractThe reaction of calcium carbide with water has been widely used as a source of acetylene for the synthesis of organic molecules. In contrast with this traditional approach, we use the CaC2 reaction under water‐starved conditions and show reactions that involve a calcium acetylide intermediate, reminiscent of Grignard reaction intermediates, which are stabilized by the solvent. Using this reaction pathway may allow for new chemistry, finer reaction control, and safety by limiting the formation of acetylene gas during the reaction. For example, reaction with bromoarenes, readily yields the corresponding diaryl acetylene.

Funder

Natural Sciences and Engineering Research Council of Canada

Canada Research Chairs

Canada Foundation for Innovation

Publisher

Wiley

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