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Highly regio-and stereoselective preparation of Z-vinylboronates by a formal trans-hydroboration of terminal alkynes
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DOI：10.1016/j.tetlet.2026.156055.png)
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Abstract
En 中文
We report an operationally convenient process for the preparation of Z-vinylboronates from terminal alkynes via a hydrozirconation/protonation procedure of in situ-generated 1-alkynylboronates with in situ-generated Schwartz's reagent (HCp2ZrCl). 1-Alkynylboronates are generated via reaction of lithiated alkynes with isopropyl pinacol borate, and Schwartz's reagent is generated conveniently by the slow reduction of ZrCp2Cl2 with diisobutylaluminum hydride (DIBAL-H) at room temperature.
Keywords:
Trans-hydroboration
cis pinacol vinylboronate
cis-alkenyl dioxaborolane
Schwartz's reagent
Z pinacol vinylboronate
Journal
T
IF:
1.5
Papers:
148
Citations:
4.2W
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Cited Papers