Výsledky vyhledávání - "Hidemichi Fukawa"

Discovery of aromatic components with excellent fragrance properties and biological activities: β-ionols with antimelanogenetic effects and their asymmetric syntheses

Autor: Takashi Ikawa, Hidemichi Fukawa, Kozumo Saito, Masahiro Egi, Shuji Akai, Kazuyo Hattori, Ryoichi Komaki, Natsuyo Ishikawa

Publikováno v: Chemicalpharmaceutical bulletin. 61(3)

Both enantiomers of dihydro-β-ionol and β-ionol, contained in the aromatic components of Osmanthus flower and of Hakuto peach, were obtained with high optical purity by lipase-catalyzed kinetic resolution of the racemates. It was found that all the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::40a27c9fd5fa9c6d3a1c5f97b2c93889
https://pubmed.ncbi.nlm.nih.gov/23449199

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ChemInform Abstract: Synthesis of (R)-(-)-Muscone via Enzymatic Resolution of 3-Methylcyclopentadecan-1-ol

Autor: Yoshiyasu Terao, Yasufumi Matsumura, Hidemichi Fukawa

Publikováno v: ChemInform. 30

(R)-(-)-Muscone was synthesized efficiently by oxidation of 3-(R)-methylcyclopentadecan-1-(RS)-ol, which was obtained by lipase-catalyzed resolution of its diastereomeric mixture.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e6eb5cce1a35ff25dd6c33c131ef284f
https://doi.org/10.1002/chin.199912233

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Facile synthesis of optically active gamma-lactones via lipase-catalyzed reaction of 4-substituted 4-hydroxybutyramides

Autor: Yassufumi Matsumura, Mituo Chiba, Yoshiyasu Terao, Hidemichi Fukawa, Endo Teruko

Publikováno v: Chemicalpharmaceutical bulletin. 48(2)

Lipase-catalyzed transesterification of racemic 4-substituted 4-hydroxybutyramides with succinic anhydride proceeded enantioselectively to afford (S)-succinic acid monoester and unreacted (R)-4-hydroxybutyramide derivative, which were separated easil

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::655ab4a2a5f9a2717aa9a4aa67cbb037
https://pubmed.ncbi.nlm.nih.gov/10705528

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Synthesis of (R)-(-)-Muscone via Enzymatic Resolution of 3-Methylcyclopentadecan-1-ol

Autor: Yasufumi Matsumura, Hidemichi Fukawa, Yoshiyasu Terao

Publikováno v: Chemical and Pharmaceutical Bulletin. 46:1484-1485

(R)-(-)-Muscone was synthesized efficiently by oxidation of 3-(R)-methylcyclopentadecan-1-(RS)-ol, which was obtained by lipase-catalyzed resolution of its diastereomeric mixture.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7449942dd6f3495a668ea868834c1441
https://doi.org/10.1248/cpb.46.1484

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Formic acid reduction. XXVIII. Kinetic studies on the formic acid reduction of 1,1'-benzylidenedipiperidine

Autor: Kunio Suzuki, Hidemichi Fukawa, Minoru Sekiya

Publikováno v: Chemical and Pharmaceutical Bulletin. 28:2868-2873

The formic acid reduction of 1, 1'-benzylidenedipiperidine (1) was kinetically investigated by the carbon dioxide trapping method. Rate data gave the rate equation, v=kobs [1] [HCOOH]. The initial mono- and diprotonation of 1 occur in equilibrium, an

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::be067df5cd9028eb658a3a8f608c7fc4
https://doi.org/10.1248/cpb.28.2868

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Formic acid reduction. XXIII. Kinetic studies on the formic acid reduction of carbon-carbon double bond adjacent to carbonyl

Autor: Toru Okugawa, Kunio Suzuki, Minoru Sekiya, Hidemichi Fukawa

Publikováno v: Chemical and Pharmaceutical Bulletin. 24:607-612

Kinetic manner was introduced into mechanistic studies on the formic acid reduction of carbon-carbon double bond adjacent to carbonyl induced by the formate reagent, TEAF, 5HCO2H·2NEt3. Kinetic data obtained by the use of 1, 3-dimethyl-5-benzyli-den

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c94cc99ed1fb0a7995ee09d2075b8d8a
https://doi.org/10.1248/cpb.24.607

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Decarboxylation reaction. X. Introduction of a carbon unit at the .ALPHA.-position of amines by reaction of hexahydro-1,3,5-triazines with carboxylic acids

Autor: Kazuo Achiwa, Minoru Sekiya, Hidemichi Fukawa, Yoshiyasu Terao

Publikováno v: Chemical and Pharmaceutical Bulletin. 31:94-99

An efficient method for introducing a carbon unit at the α-position of alicyclic amines is described. The method involves the reaction of monocyclic or tetracyclic hexahydro-1, 3, 5-triazines with trichloroacetic acid, cyanoacetic acid, malonic acid

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::842e30165a500e51daedd2ded8793740
https://doi.org/10.1248/cpb.31.94

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