Zobrazeno 1 - 9
of 9
pro vyhledávání: '"David W. Sopher"'
Publikováno v:
Journal of The Electrochemical Society. 147:3751
The hydrodimerization of acrylonitrile to adiponitrile is a commercial electrolytic process carried out in a narrow gap, undivided, bipolar cell and with a multiphase electrolyte. As a consequence of the process chemistry, the electrolyte contains ox
Publikováno v:
Journal of Wood Chemistry and Technology. 4:505-532
The chemical characterization (functional group distribution) and spectroscopic properties (13C, 1H, IR, UV-Vis) of a number of lignins obtained from ethanol extraction of explosively-decompressed aspen (Populus tremuloides) lignin (EEEDAL) are descr
Autor:
Nazar‐ ul‐Islam, Matt Ratcliff, David W. Sopher, James H. P. Utley, Keith G. Ellis, Helena L. Chum
Publikováno v:
Journal of The Electrochemical Society. 134:3058-3062
Publikováno v:
Tetrahedron. 43:2741-2748
Alcohols and vicinal diols, when co-electrolysed with oxalate esters, undergo transesterificatlon catalysed by cathodlcally generated base. Under mild conditions at modest cathodic potentials the esters formed in situ give good yields of the correspo
Publikováno v:
Tetrahedron. 43:959-970
Esters of oxalic acid, 3,4-dihydroxy-3-cyclobutene-1,2-dione (squaric acid), and oxamic acid, are reduced cathodically at modest potentials. In aprotic solvent, and on the cyclic voltammetric time scale, the esters are cleaved to the corresponding al
Publikováno v:
Journal of The Electrochemical Society. 130:2507-2509
Donnees sur l'utilisation de la membrane echangeuse de cations Nafion R dans l'electrosynthese organique et dans la separation d'acides carboxyliques. Exemple de reduction d'acide levulinique (1-3M) dans de l'acide sulfurique (0,1-1,0M) dans une cell
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 2. :77
The electrochemical oxidation of 3-amino-4,5-dihydro-1-phenylpyrazole in acetonitrile has been examined. One reversible oxidation wave was observed between the potentials –0.6 and 0.9 V versus s.c.e. Controlled potential electrolysis indicated the
Autor:
David W. Sopher, James H. P. Utley
Publikováno v:
Journal of the Chemical Society, Chemical Communications. :134
Oxalates undergo fragmentation and elimination upon cathodic reduction at relatively modest potentials and this method, when applied to vicinal dioxalates, is useful for alkene formation under mild conditions and, when applied to a mono-oxalate, allo
Autor:
James H. P. Utley, David W. Sopher
Publikováno v:
Journal of the Chemical Society, Chemical Communications. :1087
In the presence of CrIII a variety of carbonyl compounds, including polyene compounds such as β-ionone and retinal, are electro-reduced smoothly to pinacols under chemically mild conditions and at relatively low potentials; a mechanism involving red