Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Yuji Okabe"'
Publikováno v:
Bulletin of the Chemical Society of Japan; Aug2023, Vol. 96 Issue 8, p724-730, 7p
Publikováno v:
Bulletin of the Chemical Society of Japan. 80:1124-1128
The 2,6-naphthalenedicarboxylate ion (2,6-NDC) was included into the interior cavity of 3A,6A-anhydro-β-cyclodextrin (1) in D2O containing 0.1 mol dm−3 Na2CO3 and caused a shift in the 1H NMR signa...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::21d0735432d6655685e83fc64c76e622
https://doi.org/10.1246/bcsj.80.1124
https://doi.org/10.1246/bcsj.80.1124
Autor:
Hidetoshi Morikawa, Kahee Fujita, De-Qi Yuan, Makoto Fukudome, Yuji Okabe, Toshihiro Fujioka, Madoka Sakaguchi
Publikováno v:
Tetrahedron Letters. 45:9045-9048
2 A ,3 A -Alloepithio-2 A ,3 A -dideoxy-β-cyclodextrin ( 2 ), which may serve as a novel and important intermediate for the functionalization of the secondary face of β-cyclodextrin, was prepared in 40% yield by heating 2 A ,3 A -mannoepoxy-β-cycl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::22728162b451f0c947c079b7d3042cc3
https://doi.org/10.1016/j.tetlet.2004.10.031
https://doi.org/10.1016/j.tetlet.2004.10.031
Autor:
Kahee Fujita, Makoto Fukudome, Akitoshi Yoshino, De-Qi Yuan, Yuji Okabe, Toshihiro Fujioka, Hideaki Shimada, Kazuko Ohta
Publikováno v:
European Journal of Organic Chemistry. 2004:3113-3118
In the nucleophilic ring-opening reaction of 2X,3X-manno-epoxides, the incoming nucleophiles attack the 3X-C position of the epoxide almost exclusively. However, a quite unusual but very interesting reversed regioselectivity is observed when intramol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3a3bdaff9ffd127183114acac034bf1c
https://doi.org/10.1002/ejoc.200400162
https://doi.org/10.1002/ejoc.200400162
Publikováno v:
Journal of Molecular Structure. 891:420-422
NMR titration experiments showed that a disulfide-linked α-cyclodextrin dimer (1) stepwise forms 1:1 and 1:2 (host:guest) complexes with 1-alkanols. In the cases of ethanol and 1-propanol with short alkyl chains, the first and second guest molecules
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::77a593f0a39968b97dd471910ffd8cb7
https://doi.org/10.1016/j.molstruc.2008.04.015
https://doi.org/10.1016/j.molstruc.2008.04.015
Autor:
Yasuyoshi Nogami, Hatsuo Yamamura, Kahee Fujita, Tsutomu Tahara, Yuji Okabe, Kazuko Ohta, Toshitaka Koga
Publikováno v:
Tetrahedron Letters. 37:1825-1828
Guest-binding ability of some β-cyclodextrin derivatives with deformed cavities were dependent on the cavity shapes, where 2,3′-anhydro-β-cyclodextrin 3 bound methyl orange about 2.8 times stronger than native β-cyclodextrin at 10°C.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1ffcaeccb47c2434436b64f280d4450e
https://doi.org/10.1016/0040-4039(96)00128-1
https://doi.org/10.1016/0040-4039(96)00128-1
Publikováno v:
ChemInform. 37
[reaction: see text] A boat-type of chelated bicyclic transition state involving highly diastereoselective construction of three contiguous stereogenic centers in the Reformatsky reaction of indium enolates with alpha-alkoxy/hydroxy ketones is propos
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e0a785ea06ab35ee49ce6b3cca8c50cb
https://doi.org/10.1002/chin.200646033
https://doi.org/10.1002/chin.200646033
Autor:
Wen-Hua Chen, Youichi Yagi, Tsutomu Tahara, Yasuyoshi Nogami, De-Qi Yuan, Cheng Yang, Makoto Fukudome, Yuji Okabe, Kahee Fujita
Publikováno v:
ChemInform. 35
Three types of reactions of 2,3-anhydro-beta-cyclodextrins, namely nucleophilic ring-opening, reduction to 2-enopyranose, and reduction to 3-deoxypyranose, have been investigated to regio- and stereoselectively functionalize the secondary face of bet
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::363d1c14c9dc62cce61b4c3cf8efd6f7
https://doi.org/10.1002/chin.200412202
https://doi.org/10.1002/chin.200412202
Publikováno v:
Chemical Communications. :1045-1046
Both 2- and 3-monothiocyclodextrins have been synthesized and used in probing the mechanism of cyclodextrin-mediated cleavage of phenyl esters, showing that the 3-thiols are much more effective than the 2-thiols in promoting the acyl transfer.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c6a0bf16702d2bbe169a6788e2b802cf
https://doi.org/10.1039/a902123j
https://doi.org/10.1039/a902123j
Publikováno v:
Journal of the Chemical Society. Chemical communications. 1995(5):581-582
A ‘head-to-tail’ type cyclodextrin dimer, where C-3 of one cyclodextrin and C-6 of the other are linked by a disulfide bond, is synthesized using 2,2′-dipyridyl disulfide, which is widely applicable to the preparation of other dimers.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::877bd930d96d1534a0dfd7023494c559
http://id.nii.ac.jp/1476/00004309/
http://id.nii.ac.jp/1476/00004309/