Zobrazeno 1 - 10
of 65
pro vyhledávání: '"Kazuhisa Sakakibara"'
Publikováno v:
International Journal of Molecular Sciences, Vol 6, Iss 1, Pp 18-29 (2005)
Abstract: Statistical analysis employing the set of the steric constants Ωj,k(Rc) is shown to be very effective in characterizing the substituent steric effect on organic reactions. Ωj,k(Rc) contains several variable parameters which ar
Externí odkaz:
https://doaj.org/article/49ab32dbfe274ea0a25c47f80b8b11ee
Publikováno v:
Reactive Oxygen Species.
The function of ergothioneine (EGT) has been in controversy since the discovery of EGT in 1909. The present common understanding is that the functions of EGT remain unclear and that EGT does not seem to provide any advantage over other antioxidants.
Autor:
Kanekazu Seki, Kazuhisa Sakakibara, Hiroaki Gotoh, Akira Seto, Shota Hatazawa, Yuji Mishima, Yuki Ochi, Naoaki Saito
Publikováno v:
Analytical Methods. 8:25-28
Although chlorine radicals are strong atmospheric oxidants, their direct spectroscopic detection in the environment (gas phase) using conventional analytical techniques has not been reported. Herein, chlorine radicals (Cl˙), generated by the YAG las
Autor:
Munehiro, Yonehara, Ryo, Wakana, Kazuhisa, Sakakibara, Jun'ichi, Kotoku, Takanori, Kobayashi, Hiroaki, Gotoh
Publikováno v:
Igaku butsuri : Nihon Igaku Butsuri Gakkai kikanshi = Japanese journal of medical physics : an official journal of Japan Society of Medical Physics. 37(2)
Three-dimensional (3D) radiation dosimeter has received growing interest with the implementation of highly conformal radiotherapy treatments. Optical Computed tomography (CT) scanners have been developed for 3D quantitative measurement of optical att
Publikováno v:
Dyes and Pigments. 124:130-132
We studied triarylmethane dyes using LC/MS and UV/VIS spectrometry and demonstrated that they undergo several degradation mechanisms depending on their chemical structures, thus leading to specific degradation rates and colour fading. In particular,
Publikováno v:
Journal of Physical Organic Chemistry. 32:e3941
Publikováno v:
Chemical Physics Letters. 552:58-63
We investigated the possibility of proton exchange reaction between protic ionic liquid of diethylmethylammonium trifluoromethanesulfonate ([dema][TfOH]) and H 2 O by using NMR spectroscopy and theoretical calculation. NMR spectroscopy experiment sho
Autor:
Kazuhisa Sakakibara, Hiroaki Gotoh, Muhammed Shah Miran, Tomohiro Yasuda, Michiaki Kuroha, Masayoshi Watanabe
Publikováno v:
Chemistry Letters. 43:649-651
Proton-conductivity enhancing Ionic Liquid (IL) has been prepared from 1,1,3,3-tetramethylguanidine (TMG) and excess trifluoromethanesulfonic acid (TfOH). Fast mobile nature of conductive protons has been characterized by NMR, IR spectroscopy and B3L
Publikováno v:
Bulletin of the Chemical Society of Japan. 83:328-334
Structural specificity including dynamic behavior and stable conformations in the bulk phase of diethylmethylammonium trifluoromethanesulfonate [dema][TfOH], which is assumed to be a prominent ioni...
Publikováno v:
Tetrahedron. 64:575-581
Enantioselective preference in the asymmetric synthesis where cyclohexene oxide is transformed enantioselectively to chiral (S)- or (R)-2-cyclohexen-1-ol by the reaction with the appropriate chiral lithium amide reagent has been evaluated theoretical