Zobrazeno 1 - 10
of 92
pro vyhledávání: '"C. Akira Horiuchi"'
Autor:
Yoshitaka Kobayashi, Tetsuo Takemura, Jun Satoh, Go Emoto, Chihiro Yaginuma, C. Akira Horiuchi, Takamitsu Utsukihara, Yuta Takahashi
Publikováno v:
Journal of Molecular Catalysis B: Enzymatic. 55:104-109
Both enantiomers of 2,2′-dihydroxy-4,4′,5,5′,6,6′-hexamethybiphenyl (2), a potentially useful chiral synthon, were obtained with >99% ee in high enantioselectivity by cholesterol esterase or porcine pancreas lipase (PPL)-mediated hydrolysis o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e8a7fbd4c49a94e51bdf43c2eb5a3f70
https://doi.org/10.1016/j.molcatb.2008.02.007
https://doi.org/10.1016/j.molcatb.2008.02.007
Publikováno v:
Biotechnology Letters. 30:2025-2029
Suspension cultured cells of Caragana chamlagu (Leguminosae) converted zerumbone (1) into zerumbone epoxide (2) as the intermediate, (2R,3R,7R)-2,3-epoxy-9-humulen-8-one (3) and (2R,3S,7R)-2,3-epoxy-9-humulen-8-one (4) as new sesquiterpenes in 11%, 3
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bdd358d43f9c915888b481c2de96e8d3
https://doi.org/10.1007/s10529-008-9783-5
https://doi.org/10.1007/s10529-008-9783-5
Autor:
Chika Abe, Nakahide Kato, C. Akira Horiuchi, Michiko Sato, Michihiko Saito, Mai Kawamoto, Masahiro Koshimura, Takamitsu Utsukihara
Publikováno v:
Biotechnology Letters. 30:1655-1660
The biotransformation of 2-methylcyclohexanone (1) using 16 fungal strains and some mushroom cultures was investigated. Fusarium sp. was one of the effective biocatalysts for oxidoreduction of 2-methylcyclohexanone (1). cis-2-Methylcyclohexanol (2a)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::48c9f5cee701a45b2e1fa53cb1aba10b
https://doi.org/10.1007/s10529-008-9729-y
https://doi.org/10.1007/s10529-008-9729-y
Autor:
C. Akira Horiuchi, Tsuneyoshi Kuroiwa, Masayuki Kuniyoshi, Takamitsu Utsukihara, Masahiro Koshimura, Osami Misumi, Koichi Nakajima
Publikováno v:
Journal of Molecular Catalysis B: Enzymatic. 51:19-23
The stereoinversion of ortho-, meta- and para-substituted fluoro, chloro, bromo and methyl 1-phenylethanols using red alga (Cyanidioschyzon merolae) was investigated. It was found that 1-(4′-chlorophenyl)ethanol (1f) gave the corresponding (S)-alco
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c61f4ed6c4d96ba481c9531731d29eac
https://doi.org/10.1016/j.molcatb.2007.10.002
https://doi.org/10.1016/j.molcatb.2007.10.002
Publikováno v:
Biotechnology Letters. 30:951-954
The biotransformation of racemic 1-phenylethanol (30 mg) with plant cultured cells of basil (Ocimum basilicum cv. Purpurascens, 5 g wet wt) by shaking 120 rpm at 25 degrees C for 7 days in the dark gave (R)-(+)-1-phenylethanol and acetophenone in 34
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::780a89018a8d7945dd0d16b7c8baa23b
https://doi.org/10.1007/s10529-007-9615-z
https://doi.org/10.1007/s10529-007-9615-z
Autor:
Masatoshi Matsushita, C. Akira Horiuchi, Takamitsu Utsukihara, T. Tomoyoshi Takahashi, Rob J. Jansen, Yohei Shimizu
Publikováno v:
Tetrahedron. 63:8932-8938
The reaction of 2-bromo-3-oxo steroids with 2-aminoethanethiol led to the stereoselective formation of spiro[steroid-3,2′-thiazolidin]-2-ones as the major product. With both cyclic and acyclic α-halo alkanones, the reaction gave the thiazolidines
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9820bafef05d5ddd27407e027939f63e
https://doi.org/10.1016/j.tet.2007.06.041
https://doi.org/10.1016/j.tet.2007.06.041
Autor:
C. Akira Horiuchi, Takamitsu Utsukihara, Michiko Sato, Hiroshi Sakamaki, Masayuki Kuniyoshi, Mai Kawamoto, Ken-ichi Itoh
Publikováno v:
Journal of Molecular Catalysis B: Enzymatic. 48:59-63
The biotransformation of several indoles using suspension plant cultured-cells of Caragana chamlagu gave the corresponding ketoamides by oxidative cleavage. In the case of biotransformation of 2,3-dimethylindole ( 1 ) by C. chamlagu , o -acetylaminoa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1e686185c45dfb59f10dc19a7458917c
https://doi.org/10.1016/j.molcatb.2007.06.006
https://doi.org/10.1016/j.molcatb.2007.06.006
Autor:
Takamitsu Utsukihara, C. Akira Horiuchi, Toufik A. Mostefaoui, Koichi Nakajima, Kyuji Ohta, Masahiko Murakami, Wen Chai
Publikováno v:
Journal of Chromatography A. 1161:338-341
Some difficulties on a sampling of gaseous glyoxal using DNPH-silica cartridge were discussed, and an alternative sampling procedure was proposed. When glyoxal was sampled using the cartridge, it partially formed mono-hydrazone with various degrees,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d78d2b6f12356bd2d6f065fb1da4ed05
https://doi.org/10.1016/j.chroma.2007.06.057
https://doi.org/10.1016/j.chroma.2007.06.057
Publikováno v:
Journal of Molecular Catalysis B: Enzymatic. 45:68-72
Biotransformation of α-bromo and α,α′-dibromo alkanones were investigated with alga of Spirulina platensis. Biotransformation of α-bromo ketone with S. platensis gave the corresponding α-hydroxyketone in good yields (80–95%). It was found th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::007af7ff6495ae6488716dc62c48a5a9
https://doi.org/10.1016/j.molcatb.2006.12.001
https://doi.org/10.1016/j.molcatb.2006.12.001
Autor:
Hiroshi Sakamaki, T. Tomoyoshi Takahashi, C. Akira Horiuchi, Yoshikazu Saitoh, Masatoshi Matsushita, Kenji Funayama, Ken-ichi Itoh, Chikao Hashimoto, Miyuki Kanamori, Takashi Sugiyama, Liangyou He, Takamitsu Utsukihara
Publikováno v:
Applied Organometallic Chemistry. 21:1029-1032
The reaction of α,β-unsaturated ketones with cerium (IV) sulfate tetrahydrate [Ce(SO4)2·4H2O, CS] in acetic acid gave the corresponding β-acetoxy ketones. In the case of 2-cyclohexen-1-one with CS in acetic acid, benzobicyclo[2.2.2]octen-2-one wa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0747621aeb11bf37c1b91b4b78358091
https://doi.org/10.1002/aoc.1326
https://doi.org/10.1002/aoc.1326