α,β-Enone Borylation by Bis(Pinacolato)Diboron Catalyzed by Cu3(BTC)2 Using Cesium Carbonate as a Base — Amarajothi Dhakshinamoorthy (2021) | RDL Network
Cu<sub>3</sub>(BTC)<sub>2</sub> (BTC: 1,3,5-benzenetricarboxylate) as a heterogeneous catalyst in the presence of cesium carbonate as a base is reported for the borylation of α,β-conjugated enones by bis(pinacolato)diboron (B<sub>2</sub>pin<sub>2</sub>). According to the hot-filtration test, Cu<sub>3</sub>(BTC)<sub>2</sub> is acting as a heterogeneous catalyst. Further, Cu<sub>3</sub>(BTC)<sub>2</sub> exhibits a wide substrate scope and can be reused in consecutive runs, maintaining a crystal structure as evidenced by powder X-ray diffraction (XRD). A suitable mechanism is also proposed for this transformation using Cu<sub>3</sub>(BTC)<sub>2</sub> as catalyst.
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