52191-71-6Relevant articles and documents
Electrocatalytic Oxidative Coupling of Methylquinolines on TEMPO-modified Graphite Felt Electrodes
Kashiwagi, Yoshitomo,Ono, Hiroaki,Osa, Tetsuo
, p. 257 - 260 (1993)
2- and 4-Methylquinolines were oxidized to 2,2'-dimethyl-4,4'-biquinolyl and 4,4'-dimethyl-2,2'-biquinolyl, respectively, both in ca. 94percent isolated yield and ca. 90percent current efficiency on a graphite felt electrode coated with a thin poly(acrylic acid) layer containing 4-amino-2,2,6,6-tetramethylpiperidinyl-1-oxyl (4-amino-TEMPO).The reaction proceeds via electrocatalytic oxidation of the modified-TEMPO species.The electrode was not inactivated during electrolysis and could be used repeatedly.
A Convenient Synthetic Route to bis-Heteroaromatic and bis-Heterocyclic Compounds Promoted by Liganded Nickel Complex Reducing Agents.
Forst, Yves,Becker, Sandrine,Caubere, Paul
, p. 11893 - 11902 (2007/10/02)
A number of nitrogen, sulfur or oxygen containing bis-heteroaromatic or bis-heterocyclic derivatives have been synthesized in good to excellent yields by homocoupling of the corresponding halogenated compounds in the presence of liganded (triphenylphosphine or 2,2'-bipyridine) nickel Complex Reducing Agents in THF or DME at 63 deg C.
ACTIVATION OF REDUCING AGENTS. SODIUM HYDRIDE CONTAINING COMPLEX REDUCING AGENTS 23. SYMMETRICAL COUPLING OF NITROGEN-CONTAINING HETEROCYCLIC HALIDES
Vanderesse, R.,Lourak, M.,Fort, Y.,Caubere, P.
, p. 5483 - 5486 (2007/10/02)
The preparation of NiCRA (NaH-tBuONa-Ni(OAc)2) in the presence of PPh3 leads to a reagent (termed NiCRA-PPh3) which is shown to be one of the most efficient Ni containing reagents reported so far for the homocoupling of heteroaromatic halides.