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Abstract | Cited by

We report herein a protocol for preparing alkynes from alkenyl triflates. Stoichiometric LiCl promotes this transformation in DMF at ambient temperature. A range of terminal and internal alkynes were obtained smoothly. A one-pot procedure of alkyne formation/Cu-mediated Huisgen cycloaddition was developed, which may find use in synthesizing natural product-based probes.

Graphical abstract: A mild preparation of alkynes from alkenyl triflates

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