the presence of cycloalkanes (C5H10, C6H12, C7H14) are efficiently trapped by electrophilicalkenes (acrylonitrile, isopropylydenmalonitrile, isopropylydencyanoacetate) to give the corresponding alkylated aliphatic nitriles. The reaction can be carried out up to complete conversion of the alkene with reasonable (in most cases 60-65 %) yields. Addition of the radicals to the alkene is followed by electron
New developments in palladium catalysed cross coupling: The coupling of alkyl iodides with alkyl Grignard reagents
作者:Paul L Castle、David A Widdowson
DOI:10.1016/s0040-4039(00)85386-1
日期:1986.1
The species generated by the reduction of 1,1′-bis(di-phenylphosphino)ferrocenepalladium dichloride is an effective catalyst for the cross coupling of alkyl iodides with alkylGrignard reagents.
Sodium borohydride-rhodium chloride in hydroxylicsolvent was proved to be very useful for the reduction of aromatic nuclei to the corresponding saturated cycles under mild conditions.
硼氢化钠-氯化铑在羟基溶剂中被证明对于在温和条件下将芳族核还原为相应的饱和循环非常有用。
Facile Arene Hydrogenation under Flow Conditions Catalyzed by Rhodium or Ruthenium on Carbon
and practical protocol for the flowhydrogenation of aromatic rings was developed. The hydrogenation of a variety of aromatic compounds, such as benzene, furan, and pyridine derivatives, could be completed within only 20 s during a single pass through a catalyst cartridge containing 10 % rhodium on carbon (Rh/C) or 10 % ruthenium on carbon (Ru/C) under neutral conditions. The protocol was successfully
Mechanistic Studies of Catalytic Carbon–Carbon Cross-Coupling by Well-Defined Iron NHC Complexes
作者:Jacob A. Przyojski、Kevin P. Veggeberg、Hadi D. Arman、Zachary J. Tonzetich
DOI:10.1021/acscatal.5b01445
日期:2015.10.2
The mechanism of iron-catalyzed carbon–carbon cross-coupling reactions between Grignard reagents and alkyl halides has been investigated using well-defined N-heterocyclic carbene (NHC) compounds. The iron(II) precatalyst, [Fe2Cl2(μ-Cl)2(IPr)2], was employed in several C–C cross coupling reactions exhibiting the ability to efficiently couple primary and secondary alkyl halides with several aryl and