Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Ho Yun Hwang"'
Publikováno v:
Bulletin of the Korean Chemical Society. 30:2377-2380
The treatment of primary amines with amino acids as a CO source in the presence of polyaniline emeraldine salts bring about N-formylation to give the corresponding formamides. This route to N-formylation methodology of primary amine represents the fi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ae457fbe599e5d885b9512947d845359
https://doi.org/10.5012/bkcs.2009.30.10.2377
https://doi.org/10.5012/bkcs.2009.30.10.2377
Publikováno v:
Synthetic Metals. 159:1820-1823
We described the convenient and efficient catalytic acylation and oxidation of primary amines and alcohols compounds into amide/ester or aldehyde compounds using nanoporous polyaniline emeraldine salts catalysts. The reaction mechanism of acylation b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d31d0d6ef0d2fc21d6d40f637825a723
https://doi.org/10.1016/j.synthmet.2009.05.033
https://doi.org/10.1016/j.synthmet.2009.05.033
Publikováno v:
Synthetic Metals. 159:1757-1760
The effects of ammonium persulfate (APS)/aniline feed molar ratio or O 2 bubbling on the polymerization of polyaniline (PANI) in self-stabilized dispersion polymerization (SSDP) were examined. As the APS/aniline feed molar ratio was increased from 0.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b603277d01f10b63317af55f40253047
https://doi.org/10.1016/j.synthmet.2009.05.020
https://doi.org/10.1016/j.synthmet.2009.05.020
Autor:
Elena A. Krasnokutskaya, Ho Yun Hwang, Ki-Whan Chi, Nadya I. Semenischeva, Victor D. Filimonov
Publikováno v:
Synthesis. 2008:401-404
In contrast to published results, tetraalkylammonium dichloroiodates (Alk 4 N + ICl 2 - ) cannot be iodinating reagents for arenes- in solvent-free conditions. Nevertheless, tetraalkylammonium dichloroiodates in sulfuric acid solutions or in the pres
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d2ac02cb615fef1fb449ed31a4e6e1c5
https://doi.org/10.1055/s-2008-1032026
https://doi.org/10.1055/s-2008-1032026
Publikováno v:
Synthetic Metals. 159:26-28
It has been known that doped polyaniline emeraldine salt (PANI-ES) synthesized by self-stabilized dispersion polymerization (SSDP) method has a nano-porous structure. This nano-porous conjugate polymer with a high surface area is effectively used for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::59715638a63a4ff91018480e497b15b9
https://doi.org/10.1016/j.synthmet.2008.07.009
https://doi.org/10.1016/j.synthmet.2008.07.009
Autor:
Ki-Whan Chi, Elena A. Krasnokutskaya, Dmitry A. Gorlushko, Bong Seong Go, Ho Yun Hwang, Victor D. Filimonov, Eun Hye Cha, Nadya I. Semenischeva
Publikováno v:
Tetrahedron Letters. 49:1080-1082
The diazotization of aryl amines at room temperature in paste form with NaNO 2 , p -TsOH and a small amount of water, followed by treatment with KI provides a new, simple, and effective route for the preparation of various aryl iodides. The water-pas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::18880e72f1f8e0f624c087dc35ed3168
https://doi.org/10.1016/j.tetlet.2007.11.192
https://doi.org/10.1016/j.tetlet.2007.11.192
Autor:
Ki-Whan Chi, Alexei N. Tretyakov, Victor D. Filimonov, Elena A. Krasnokutskaya, Nadya I. Semenischeva, Ho Yun Hwang
Publikováno v:
Synthesis. 2008:185-187
A convenient and simple one-pot method for the preparation of iodoarenes at room temperature has been developed, by sequential diazotization-iodination of aromatic amines with NaNO 2 /KI in the presence of a sulfonic acid based cation-exchange resin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::586aa0dbf76cc84e065160fd580299d6
https://doi.org/10.1055/s-2007-990950
https://doi.org/10.1055/s-2007-990950
Publikováno v:
ChemInform. 41
Perfluorinated compounds having a long alkyl-chain functionality are prepared by 1,3-dipolar cycloaddition reactions with 1,3-dipoles (in situ-formed NH-nitrones or nitrile oxides).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c54a822e8dedbfc5f3dd888beedd98d3
https://doi.org/10.1002/chin.201040127
https://doi.org/10.1002/chin.201040127
Publikováno v:
ChemInform. 41
The treatment of primary amines with amino acids as a CO source in the presence of polyaniline emeraldine salts bring about N-formylation to give the corresponding formamides. This route to N-formylation methodology of primary amine represents the fi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0f60195a46947841235fa031d8c1e338
https://doi.org/10.1002/chin.201012062
https://doi.org/10.1002/chin.201012062
Autor:
A. N. Tret'yakov, Ki-Whan Chi, Dmitry A. Gorlushko, Eun Hye Cha, N. I. Semenishcheva, Elena A. Krasnokutskaya, Bong Seong Go, Victor D. Filimonov, Ho Yun Hwang
Publikováno v:
ChemInform. 40
One of the most widely used methods of synthesis of aromatic iodides is based on diazotization–iodina-tion of aromatic amines. The diazotization is generally carried out using accessible sodium nitrite in strongly acidic medium at reduced temperatu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::747d86217d6020afa7e249090a938855
https://doi.org/10.1002/chin.200919064
https://doi.org/10.1002/chin.200919064