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Your search keyword '"Choi, Doo Seong"' showing total 3 results
Start Over Author "Choi, Doo Seong" Publisher royal society of chemistry
3 results on '"Choi, Doo Seong"'

1. The dramatic acceleration effect of imidazolium ionic liquids on electron transfer reactions.

Author

Choi DS, Kim DH, Shin US, Deshmukh RR, Lee SG, and Song CE

Abstract

Imidazolium ionic liquids (ILs) exhibited a dramatic acceleration effect on the electron transfer from metal complexes such as (C(5)Me(5))(2)Fe(II) and (C(5)Me(5))(2)Co(II) to the oxygen molecule; this acceleration effect can be ascribed to the stabilization of the oxygen radical anions by coordinating with the acidic C2-H of imidazolium ILs.

Published
2007
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2. Thermodynamically- and kinetically-controlled Friedel-Crafts alkenylation of arenes with alkynes using an acidic fluoroantimonate(v) ionic liquid as catalyst.

Author

Choi DS, Kim JH, Shin US, Deshmukh RR, and Song CE

Abstract

By employing superacidic fluoroantimonate ionic liquid (IL), [bmim][Sb(2)F(11)], as catalyst, not only thermodynamically-controlled but also kinetically-controlled Friedel-Crafts alkenylations of arenes with alkynes have been realized for the first time.

Published
2007
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3. Markedly enhanced recyclability of osmium catalyst in asymmetric dihydroxylation reactions by using macroporous resins bearing both residual vinyl groups and quaternary ammonium moieties.

Author

Kim KJ, Choi HY, Hwang SH, Park YS, Kwueon EK, Choi DS, and Song CE

Subjects
Catalysis, Hydroxylation, Molecular Structure, Organometallic Compounds chemical synthesis, Porosity, Alkenes chemistry, Organometallic Compounds chemistry, Osmium chemistry, Quaternary Ammonium Compounds chemistry, Resins, Synthetic chemistry
Abstract

Markedly enhanced recyclability of osmium catalyst in asymmetric dihydroxylation has been achieved by using osmylated macroporous resins bearing both residual vinyl groups and quaternary ammonium moiety.

Published
2005
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