Zobrazeno 1 - 7
of 7
pro vyhledávání: '"YUANXI QIN"'
Autor:
Wiranto Budisusetyo, Alem Ghiorghis, Charles J. Kelley, Joel M. Kauffman, Kwabena Ansu, Yuanxi Qin
Publikováno v:
Journal of Heterocyclic Chemistry. 38:11-23
A number of 4-arylpyridines, many methoxy substituted, were prepared by an efficient two-step method involving aryl Grignard addition to 1-methyl-4-piperidone and direct aromatization of the resulting 4-aryl-4-piperidinols. The pyridines were N-alkyl
Autor:
Carl J. Seliskar, Joel M. Kauffman, D. A. Landis, Alem Ghiorghis, Charles J. Kelley, Yuanxi Qin, R. N. Steppel, M. A. Aziz
Publikováno v:
Laser Chemistry. 13:19-28
The spectroscopic and lasing characteristics of a series of 308 nm pumped p-oligophenylenes with five or more phenyl rings have been studied. Quantitative comparisons of the absorption spectra of these dyes with numerous other dyes in this class of c
Autor:
Joel M. Kauffman, Charles J. Kelley, Wiranto Budisusetyo, Yuanxi Qin, Alem Ghiorghis, Kwabena Ansu
Publikováno v:
ChemInform. 32
A number of 4-arylpyridines, many methoxy substituted, were prepared by an efficient two-step method involving aryl Grignard addition to 1-methyl-4-piperidone and direct aromatization of the resulting 4-aryl-4-piperidinols. The pyridines were N-alkyl
Autor:
Joel M. Kauffman, Peter T. Litak, Alem Ghiorghis, John A. Novinski, Charles J. Kelley, Yuanxi Qin
Publikováno v:
Journal of fluorescence. 5(3)
Absorption and fluorescence emission spectral data, as well as fluorescence quantum yields (Φf), were determined for 41p-oligophenylene compounds containing 2–6, 8, and 10 benzene rings. Of 29 compounds containing carbon-bridged rings (fluorenes),
Autor:
Charles J. Kelley, Alem Ghiorghis, Yuanxi Qin, Joel M. Kauffman, John A. Novinski, Walter J. Boyko
Publikováno v:
Journal of Chemical Research. 23:80-81
Organometallic derivatives of aryl bromides 2a–10a have been coupled with aryl dihalides 11–16 in the presence of PdCI2(dppb) catalyst to produce symmetrical bridged oligophenylenes 17–31 and 33 that contain five to ten conjugated benzene rings
Autor:
John A. Novinski, Yuanxi Qin, Alem Ghiorghis, Charles J. Kelley, Walter J. Boyko, Joel M. Kauffman
Publikováno v:
Journal of Chemical Research. :80-81
Organometallic derivatives of aryl bromides 2a–10a have been coupled with aryl dihalides 11–16 in the presence of PdCl2(dppb) catalyst to produce symmetrical bridged oligophenylenes 17–31 and 33 that contain five to ten conjugated benzene rings
Autor:
SELISKAR, C. J., LANDIS, D. A., KAUFFMAN, J. M., AZIZ, M. A., STEPPEL, R. N., KELLEY, C. J., YUANXI QIN, GHIORGHIS, A.
Publikováno v:
Laser Chemistry; 1993, Vol. 13 Issue 1, p19-28, 10p