Abstract
Abstract2‑Boryl allylboronates, which contain both a C(sp2)–B bond and a C(sp3)–B bond, are attractive synthetic intermediates due to their diverse reactivity profiles toward a wide range of organic transformations. We report a facile approach to (Z)-2‑boryl allylboronates through a Pt/Zn-promoted diborylation reaction of readily available propargylic amines. An array of valuable (Z)-2‑boryl allylboronates were obtained in up to 73% yield in the presence of 2.5 mol% of Pt(PPh3)4 and 50 mol% of ZnBr2.
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