Zobrazeno 1 - 10
of 98
pro vyhledávání: '"Chiyo Yamamoto"'
Publikováno v:
Molecules, Vol 21, Iss 11, p 1484 (2016)
The cellulose oligomers with different degrees of polymerization (DP), 7, 11, 18, 24, 26, 40 and 52, were prepared by hydrolysis of microcrystalline cellulose with phosphoric acid. These oligomers including the starting microcrystalline cellulose (DP
Externí odkaz:
https://doaj.org/article/a93d6f383b57418a9c969c1e65bc1848
Autor:
Yoshio Okamoto, Shen Yue, Shuangyan Liu, Jun Shen, Shinji Inagaki, Chiyo Yamamoto, Zhao Yongqiang
Publikováno v:
Journal of Chromatography A. 1286:41-46
Six ortho- and six meta-substituted phenylcarbamate derivatives of amylose were prepared and their chiral recognition abilities were evaluated as chiral stationary phases (CSPs) for high-performance liquid chromatography (HPLC). The substitution at t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f69325b2d13e347fae91119a32480646
https://doi.org/10.1016/j.chroma.2013.02.020
https://doi.org/10.1016/j.chroma.2013.02.020
Publikováno v:
Molecules, Vol 21, Iss 11, p 1484 (2016)
Molecules; Volume 21; Issue 11; Pages: 1484
Molecules
Molecules; Volume 21; Issue 11; Pages: 1484
Molecules
The cellulose oligomers with different degrees of polymerization (DP), 7, 11, 18, 24, 26, 40 and 52, were prepared by hydrolysis of microcrystalline cellulose with phosphoric acid. These oligomers including the starting microcrystalline cellulose (DP
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::720d6583f2f563edf94bb23a8f2225af
http://www.mdpi.com/1420-3049/21/11/1484
http://www.mdpi.com/1420-3049/21/11/1484
Autor:
Tomoyuki Ikai, Yasunaka Katoh, Yasutaka Tsujimoto, Masami Kamigaito, Chiyo Yamamoto, Yoshio Okamoto
Publikováno v:
Polymer Journal. 43:84-90
Cellulose derivatives bearing pyridyl and bipyridyl residues were synthesized, and their recognition abilities as chiral stationary phases for high-performance liquid chromatography were evaluated. Compared with cellulose derivatives bearing these re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6933b1d6ccdb3478176a4401884e2cbb
https://doi.org/10.1038/pj.2010.108
https://doi.org/10.1038/pj.2010.108
Autor:
Masanori Takeyasu, Yasuko Yoshioka, Yoshimitsu Nagao, Syuji Kitaike, Chiyo Yamamoto, M. Nakao, Shigeki Sano
Publikováno v:
The Open Organic Chemistry Journal. 3:22-34
A series of (R)-N-Cbz-2-alkyl-2-amino-3-hydroxypropyl acetates was prepared by enzymatic acetylation of N- Cbz-2-alkyl-2-aminopropane-1,3-diols with immobilized lipoprotein lipase from Pseudomonas sp. in up to 98% enanti- omeric excess (ee). Enantiod
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e89fe423a7588009d2b0faad9c0d3d55
https://doi.org/10.2174/1874095200903010022
https://doi.org/10.2174/1874095200903010022
Publikováno v:
Chirality. 20:288-294
Completely deacetylated chitosan was prepared by the treatment of commercial chitosan with 50% aqueous NaOH, and then derivatized into several new chitosan phenylcarbamate derivatives having a urea and an imide moiety at the 2-position of the glucosa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9209f6c9b79a4eea592ead43295cc7d3
https://doi.org/10.1002/chir.20430
https://doi.org/10.1002/chir.20430
Publikováno v:
Journal of Chromatography A. 1157:151-158
The 3,5-dimethylphenylcarbamates of cellulose and amylose bearing a small amount of 3-(triethoxysilyl)propyl residues were synthesized by a simple process and efficiently immobilized onto a silica gel support by intermolecular polycondensation of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4e95c5c649102755e7824602b70ad356
https://doi.org/10.1016/j.chroma.2007.04.054
https://doi.org/10.1016/j.chroma.2007.04.054
Publikováno v:
Macromolecular Research. 15:134-141
The direct chromatographic separation of enantiomers by chiral stationary phases (CSPs) has been extensively developed over the past two decades, and has now become the most popular method for the analytical and preparative separations of enantiomers
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7dce11da78b2ba8b4acefdf61c6098b2
https://doi.org/10.1007/bf03218764
https://doi.org/10.1007/bf03218764
Publikováno v:
Pure and Applied Chemistry. 79:1561-1573
The chromatographic separation of enantiomers using chiral stationary phases (CSPs) has significantly advanced. The esters and carbamates of polysaccharides coated on silica gel have been extensively studied and widely used as CSPs for high-performan
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::83683533908c4d44b8cc877512bd9a4d
https://doi.org/10.1351/pac200779091561
https://doi.org/10.1351/pac200779091561
Publikováno v:
Polymer Journal. 38:1258-1266
N-(Triphenylmethyl)methacrylamide (TrMAM) and N-[di(4-butylphenyl)-phenylmethyl]methacrylamide (DBuTrMAM) were polymerized using a radical initiator. The obtained poly(TrMAM) was insoluble in common organic solvents, but poly(DBuTrMAM) was soluble in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::65d1b791fdc71c11bde5c0392af5c947
https://doi.org/10.1295/polymj.pj2006087
https://doi.org/10.1295/polymj.pj2006087