Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Keith W. Palmer"'
Autor:
William R. Dolbier, Keith W. Palmer
Publikováno v:
The Journal of Organic Chemistry. 58:7064-7069
Results from a study of the thermal unimolecular rearrangement of 9,10-bis(trifluorovinyl)phenanthrene are reported. Kinetic and product studies indicate that it is unexpectedly resistant to rearrangement, that its expected 6π electrocyclic rearrang
Autor:
William R. Dolbier, Keith W. Palmer
Publikováno v:
Tetrahedron Letters. 34:6201-6204
Photolysis of the title compound leads to a clean 6-π conrotatory electrocyclic reaction followed by a less-efficient 4-π disrotatory electrocyclic process.
Publikováno v:
Magnetic Resonance in Chemistry. 31:748-751
19 F NMR chemical shifts and coupling constants are given for a series of aryl (phenyl, naphthyl and phenanthryl) substituted trifluorovinyls and (E)- and (Z)-perfluoropropenyls. The relationship between the 19 F NMR chemical shifts and the configura
Publikováno v:
ChemInform. 22
Publikováno v:
ChemInform. 24
Autor:
W. R. Jun. Dolbier, Keith W. Palmer
Publikováno v:
ChemInform. 25
Autor:
W. R. Jun. Dolbier, Keith W. Palmer
Publikováno v:
ChemInform. 25
Publikováno v:
Journal of Molecular Structure. 273:305-315
Energetic barriers of conformational transformations of 1,2-bis(trifluorovinyl)-naphthalene and 9,10-bis(trifluorovinyl)phenanthrene were calculated by molecular mechanics (MM) methods and compared with experimental data obtained by NMR. It was found
Autor:
Piotr Fiedorow, Andrzej Zaganiaczyk, Feng Tian, William R. Dolbier, Henryk Koroniak, Keith W. Palmer
Publikováno v:
ChemInform. 34
Fluorine atoms incorporated into 1,5-hexadiene molecule should influence the kinetic as well as the thermodynamic parameters of [3,3] sigmatropic rearrangement (Cope rearrangement). Within few decades is has been documented that this transformation p
Autor:
William R. Dolbier, Keith W. Palmer
Publikováno v:
Journal of the American Chemical Society. 115:9349-9350