Abstract
Iterative Sonogashira‐coupling routes have been used to prepare sydnone‐containing areneynes 1–3 (and related compounds) from o‐iodophenylsydnone (4). The best results were obtained by using two‐ and three‐reaction‐in‐one‐pot protocols.
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Acknowledgments
The authors gratefully acknowledge the WSU Graduate Council for a scholarship to AJW, Aaron Burke for the NMR spectra, the Air Force Research Laboratory and the Petroleum Research Fund, administered by the American Chemical Society, for partial support of this research.