The preparation of alkynecarboxylic acid esters, which are versatile building blocks for the synthesis of heterocyclic compounds, is described by means of the palladium-catalyzed coupling of alkynes with chloroformates for the first time.
A. Böttcher, H. Becker, M. Brunner, T. Preiss, J. Henkelmann, C. De Bakker and R. Gleiter, J. Chem. Soc., Perkin Trans. 1, 1999, 3555 DOI: 10.1039/A908458D
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