Zobrazeno 1 - 10
of 70
pro vyhledávání: '"Ko-Ki Kunimoto"'
Autor:
Soh-ichi Kitoh, Yijing Feng, Shuhei Fujinami, Masaki Ichitani, Mitsunori Honda, Ko-Ki Kunimoto
Publikováno v:
Acta Crystallographica Section E, Vol 69, Iss 11, Pp o1699-o1699 (2013)
In the title compound, C11H9FN2O2S, the 2-sulfanylideneimidazolidin-4-one moiety is essentially planar, with a maximum deviation of 0.0183 (14) Å. The mean plane of this moiety is approximately coplanar with the attached acetyl group and perpendicul
Externí odkaz:
https://doaj.org/article/7059cca75a064af1b4e4508118e647f5
Autor:
Masaki Ichitani, Soh-ichi Kitoh, Shuhei Fujinami, Mitsuhiro Suda, Mitsunori Honda, Ko-Ki Kunimoto
Publikováno v:
Acta Crystallographica Section E, Vol 69, Iss 6, Pp o953-o953 (2013)
In the title compound, C7H12N2OS, the 2-sulfanylideneimidazolidin-4-one moiety is nearly planar, with a maximum deviation of 0.054 (2) Å. In the crystal, a pair of N—H...O hydrogen bonds and a pair of N—H...S hydrogen bonds each form a centrosym
Externí odkaz:
https://doaj.org/article/77a69285914a4c4580c17f5dcb4a50ca
Autor:
Yugo Nakashima, Hisako Okumura, Hitoshi Kinugasa, Mitsunori Honda, Masaki Ichitani, Ko-Ki Kunimoto
Publikováno v:
European Journal of Chemistry. 9:386-393
Nucleophiles such as thiol compounds have enhancing effects on the 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activities of polyphenols. Several authors have suggested that regeneration of the catechol structure from o-quinone plays a ke
Autor:
Ko-Ki Kunimoto, Masahito Segi, Mitsunori Honda, Hiromoto Koshiro, Sho Sasaki, Tsuyoshi Nishimoto
Publikováno v:
Tetrahedron Letters. 59:3777-3781
The synthesis of cyclopropyl silyl ketones possessing a hydrocarbon group at 1-position of three-membered ring was investigated. The reaction of sulfoxonium ylide with α,β-unsaturated acylsilanes derived from α,β-unsaturated aldehydes did not aff
Autor:
Yusuke Taniguchi, Ko-Ki Kunimoto, Takahiro Yamaguchi, Mitsunori Honda, Masahito Segi, Tomohiro Hayashi
Publikováno v:
Tetrahedron Letters. 58:4554-4558
The synthesis of a novel class of 3-silyl substituted thiophenes possessing perfluoroalkyl groups on the silicon atom was investigated. The treatment of 3-bromothiophene with n -butyllithium followed by the reaction with halosilanes proceeded to affo
Publikováno v:
European Journal of Chemistry. 6:367-373
Caffeoylquinic acids (CQAs) are a group of the phenylpropanoids produced by certain plant species, which have various biological activities including antioxidant, antibacterial, anticancer, and others. Several synthetic routes have been developed usi
Publikováno v:
Tetrahedron Letters. 58:3191-3193
The synthesis of a novel class of fluorous ionic liquids was investigated. The reaction of pyrrolidine or piperidine with perfluoroalkyl iodide in pyridine proceeded to give the corresponding tertiary amine derivatives 3 and 4 in good yields. The fol
Publikováno v:
HETEROCYCLES. 101:104
Publikováno v:
MRS Proceedings. 1767:93-105
An eco-friendly adsorbent was prepared by immobilization of Persimmon Tannin (PT) in cellulose viscopearls to remove caffeine. The immobilization time within a range of 1-42days was performed. Batch adsorption experiments were studied for different P
Publikováno v:
European Journal of Chemistry. 5:305-310
IR and Raman spectra of lithium pyruvate monohydrate and its O- and C-deuterated and 13 C- and 18 O-substituted compounds have been recorded in the solid state, and the observed bands have been assigned by using the isotope effects and the normal coo