Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Hong Sik, Han"'
Publikováno v:
Organic Letters. 20:1698-1702
A general photoredox-catalyzed intramolecular cyclization was developed for the synthesis of trifluoromethylated heterocyclic compounds. The reaction proceeded smoothly under mild photocatalytic conditions with high functional group tolerance, allowi
Publikováno v:
Organic Letters. 20:1693-1697
The direct oxidative addition of CF3 and H2O to alkynes was achieved with photoredox catalysis to obtain α-trifluoromethyl ketones via rapid enol-keto tautomerization. The reaction exhibits high functional group tolerance and regioselectivity. Heter
Autor:
Myung Jin Kim, Joo-Youn Lee, Soo Bong Han, Chang-Soo Yun, Ali Imran, Young-Sik Jung, Hong Sik Han, Young Jin Lee, Hyo Gyeong Na, Kyuneun Kim
Publikováno v:
ACS Med Chem Lett
[Image: see text] Hepatitis B virus (HBV) remains a major health concern with 260 million people having been infected globally, and approximately 680,000 deaths have occurred annually from cirrhosis and liver cancer. The modulation of HBV capsid asse
Publikováno v:
Organic letters. 20(7)
A general photoredox-catalyzed intramolecular cyclization was developed for the synthesis of trifluoromethylated heterocyclic compounds. The reaction proceeded smoothly under mild photocatalytic conditions with high functional group tolerance, allowi
Autor:
H. G. Lee, H. S. Suh, Byoung Hun Lee, Kwangyl Park, Sang-Gui Lee, D. E. Kim, Young-Gyu Jung, In Soo Ko, M. S. Lee, Seonghan Kim, Hong-Sik Han, C. W. Sung
Publikováno v:
Journal of the Korean Physical Society. 66:317-322
The Pohang Accelerator Laboratory (PAL) is developing a self amplification of spontaneous emission (SASE) based free electron laser (FEL) for X-ray coherent photon sources. The PAL developed a prototype undulator that had a 5.0 m magnetic length and
Publikováno v:
Organic letters. 19(8)
A new photoredox-catalyzed chlorotrifluoromethylation reaction of internal arylalkynes under mild conditions using visible light has been developed. The reactions proceed with high levels of regio- and stereoselectivity and utilize commercially avail
Publikováno v:
Journal of the American Chemical Society. 136:11606-11609
Air-stable azomethine ylides with an unusual pattern of charge distribution were efficiently prepared via the rhodium-catalyzed reaction between pyridines and 1-sulfonyl-1,2,3-triazoles. This reaction allowed for the first example of the catalytic mu
Autor:
H. S. Seo, WonKee Lee, K.-H. Park, K. Kim, Y.-G. Jeong, H.-H. Lee, J.Y. Huang, Taekyun Ha, D-E. Kim, Hong-Sik Han, S.H. Nam, Sung-Gyun Shin
This paper describes the result of overall studies from development to characterization of undulator radiation. After three years of upgrading, PLS-II [1, 2] has been operating successfully since 21st March 2012. During the upgrade, we developed and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::82b7168b9b0244a02ac75bb96f18f56a
In the storage ring of PLS-II, we reduced mechanical displacement of electron beam position monitors (e-BPMs) that is caused by heating during e-beam storage. The orbit feedback system intends that the electron beam pass through the center of the BPM
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e0688f4a6d9f06315bbb75e02157904c
Autor:
Hong-Sik Han, Ki-Seo Kim, H. S. Suh, Dong Eon Kim, Hee-Jo Lee, Ki-Hyeon Park, Y. D. Joo, YoungGyu Jung
Publikováno v:
Journal of the Korean Physical Society. 56:1964-1970