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Updated: May 21, 2026

Facile Preparation of (2Z,4E)-Dienamides by the Olefination of Electron-deficient Alkenes with Allyl Acetate
Published on: June 21, 2017
Aldehyde binding through reversible C-C coupling with the pincer ligand upon alcohol dehydrogenation by a
Michael Montag1, Jing Zhang, David Milstein
1Department of Organic Chemistry, Weizmann Institute of Science, Rehovot 76000, Israel.
Abstract:
Primary alcohol dehydrogenation by a PNP-Ru(II) catalyst was probed by low-temperature NMR experiments. Facile dehydrogenation occurred at -30 °C, but the resulting aldehydes were not found in solution, as they were trapped by the catalyst through a new mode of metal-ligand cooperation involving Ru-O coordination and an unusual, highly reversible C-C coupling with the PNP pincer ligand.
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