Nickel-Catalyzed Addition-Type Alkenylation of Unactivated, Aliphatic C–H Bonds with Alkynes: A Concise Route to Polysubstituted γ-Butyrolactones
摘要:
Through the nickel-catalyzed chelation-assisted C-H bond activation strategy, the addition-type -allcenylation of unreactive beta-C(sp(3))-H bonds of aliphatic amides with internal alkynes is developed for the first time to produce gamma/delta-unsaturated carboxylic amide derivatives. The resulting alkenylated products can further be transformed into polysubstituted gamma-butyrolactones with pyridinium chlorochromate (PCC).
15-Bis(pentafluorophenyl)-10,20-diphenylporphinato]zinc(II) (1), a metalloporphyrin derivative that was recently reported as an efficient photocatalyst driven by blue LEDs by our group, was found to catalyze a red-light-promoted (630 nm LEDs) radical cascade reaction of N-3-arylpropionyloxyphthalimides with radicophiles including electron-deficientalkenes and alkynes, providing access to a range of functionalized
Buu-Hoi; Cagniant, Comptes Rendus Hebdomadaires des Seances de l'Academie des Sciences, 1943, vol. 216, p. 346
作者:Buu-Hoi、Cagniant
DOI:——
日期:——
METHOD OF FORMING A MULTILAYER STRUCTURE
申请人:Rohm and Haas Electronic Materials LLC
公开号:US20180282165A1
公开(公告)日:2018-10-04
Compositions comprising a liquid carrier and certain MX/graphitic carbon precursors are useful in forming multilayer structures having an MX layer and a graphitic carbon layer disposed on a substrate, wherein the MX layer is interposed between the substrate and the graphitic carbon layer in the multilayer structure.