Enones from Acid Fluorides and Vinyl Triflates by Reductive Nickel Catalysis
作者:Feng-Feng Pan、Peng Guo、Chun-Ling Li、Peifeng Su、Xing-Zhong Shu
DOI:10.1021/acs.orglett.9b01164
日期:2019.5.17
A nickel-catalyzed reductive coupling between acid fluorides and vinyl triflates has been described. This method provides an efficient access to various enones and avoids the requirement for acyl or vinyl metallic reagents in the conventional approaches. The reaction proceeds with a broad range of acid fluorides and cyclic vinyl triflates, tolerating several functional groups. The utility of this synthetic
Synthesis of Stereodefined Enones from the Cross-Electrophile Coupling of Activated Acrylic Acids with Alkyl Bromides
作者:Omar M. Beleh、Sileen Alomari、Daniel J. Weix
DOI:10.1021/acs.orglett.4c02644
日期:2024.8.30
(E)-trisubstituted enones from acrylic acids through the in situ generation of a 2-pyridyl ester and subsequent cross-electrophile coupling with a nickel catalyst under reducing conditions. The scope of trisubstituted enones is broad and compatible with functionality that can be challenging in established olefination techniques. We highlight conditions necessary to suppress undesired side reactions from the α,β-unsaturated