Practical solvent‐free microwave‐assisted hydroboration of alkynes
Julia Altarejos, David Sucunza, Juan José Vaquero, Javier Carreras*
Eur. J. Org. Chem., 2020, Accepted Articles
DOI: 10.1002/ejoc.202000110
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| A simple and rapid protocol for the anti‐Markovnikov hydroboration of alkynes assisted by microwave irradiation has been developed. Pinacolborane smoothly reacts with terminal alkynes to obtain (E)‐alkenyl boronates in good yields and short reactions times in the absence of solvent. Further transformations on the carbon‐boron bond of the adducts can be sequentially achieved without the need of purifying the alkenyl boronates. |