Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Kyoko Mandai"'
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 18, Iss 1, Pp 660-668 (2022)
The enhanced reaction rate in the epoxidation of cyclohexene with air as an oxidant was discovered without any added catalyst utilizing a continuous flow reactor constructed with readily available stainless steel parts and devices. This continuous-fl
Externí odkaz:
https://doaj.org/article/1a7b3c3b886a4b7fbf04c55d5f22af5b
Autor:
Dr. Yosuke Ashikari, Dr. Kyoko Mandai, Yiyue Yao, Yuta Tsuchihashi, Prof. Dr. Aiichiro Nagaki
Publikováno v:
ChemElectroChem, Vol 10, Iss 23, Pp n/a-n/a (2023)
Abstract We developed an electrocatalytic reduction of (hetero)aryl halides under mild conditions using a proton exchange membrane (PEM) reactor. This approach allows substituting the halogeno groups on the aryl rings to protons by water and electron
Externí odkaz:
https://doaj.org/article/1373111cfb2745839a1b444ec3dcd3a9
Publikováno v:
Journal of the American Chemical Society. 142:17039-17047
In spite of their potential utility, the chemistry of dimetalated arenes is still in its infancy because they are extremely difficult to synthesize. We report a novel method of synthesizing arenes bearing a boryl group and a metallic substituent, suc
Autor:
Yosuke Ashikari, Daisuke Ichinari, Yoko Aizawa, Jun-ichi Yoshida, Aiichiro Nagaki, Kyoko Mandai
Publikováno v:
Angewandte Chemie. 132:1583-1587
A novel straightforward method for aryl azides having functional groups based on generation and reactions of aryllithiums bearing a triazene group from polybromoarenes using flow microreactor systems was achieved. The present approach will serve as a
Autor:
Seiji Suga, Takehiro Fukuda, Kyoko Mandai, Tadashi Ema, Hideki Hashimoto, Jun Takada, Hiroki Mandai, Yuki Miyazaki
Publikováno v:
Synlett. 28:805-810
A PTFE microtube reactor was constructed with lipase immobilized on magnetized bacteriogenic iron oxide, which was retained inside of the tube by attraction to an external magnet. The reactor was used for the lipase-promoted kinetic resolution of sec
Publikováno v:
Tetrahedron Letters. 61:151367
The synthesis of 18O-labeled enantioenriched compounds and their facile evaluation system to determine enantiomeric excess (ee) using mass spectroscopy was described. Equimolar mixture of 18O-labeled and non-labeled pseudo-enantiomers were used as a
Autor:
Minae Hanata, Jun Takada, Koichi Mitsudo, Kyoko Mandai, Hideki Hashimoto, Hiroki Mandai, Seiji Suga
Publikováno v:
Tetrahedron. 71:9403-9407
Iron oxide produced by iron-oxidizing bacteria, Leptothrix ochracea, (L-BIOX) obtained from a freshwater purification plant, Joyo City in Kyoto, Japan catalyzed Baeyer-Villiger oxidation with molecular oxygen in the presence of benzaldehyde at 25 °C
Autor:
Kyoko Mandai, Hiromichi Ishihara, Tomoko Suzuki, Hitoshi Kunoh, Eisuke Taketa, Jun Takada, Hideki Hashimoto
Publikováno v:
Minerals, Vol 4, Iss 3, Pp 565-577 (2014)
Minerals; Volume 4; Issue 3; Pages: 565-577
Minerals; Volume 4; Issue 3; Pages: 565-577
This study aimed to manipulate the texture and elemental composition of the novel sheaths produced by the iron-oxidizing bacterium Leptothrix in culture by altering components of the medium. When previously isolated strain OUMS1 was cultured in media
Autor:
Hiroki Mandai, Seiji Suga, Minae Hanata, Jun Takada, Hideki Hashimoto, Kyoko Mandai, Koichi Mitsudo
Publikováno v:
ChemInform. 47
Iron oxide produced by Leptothrix ochracea catalyzes the Baeyer—Villiger oxidation with molecular oxygen in the presence of benzaldehyde at 25°C.
Autor:
Kyoko Mandai, Toshinobu Korenaga, Tadashi Ema, Mitsuaki Furutani, Hideki Hashimoto, Takashi Sakai, Jun Takada
Publikováno v:
Tetrahedron Letters. 53:329-332
Iron oxide produced by iron-oxidizing bacteria, Leptothrix ochracea , (biogenous iron oxide: BIO) was used as a support for immobilized palladium catalysts with organic cross-linkers. Palladium immobilized on BIO bearing imidazolium chloride delivere