Zobrazeno 1 - 10
of 338
pro vyhledávání: '"Atsuyoshi Ohno"'
Publikováno v:
Bulletin of the Chemical Society of Japan. 75:1311-1318
Various types of trivalent phosphorus compounds (1; Ph(3-n)P(OR)n) underwent single electron transfer (SET) to unsubstituted (2H) and 5-chloro-substituted tris(1, 10-phenanthroline)iron(III) complexes (2Cl) in the presence of ethanol in acetonitrile,
Publikováno v:
Heteroatom Chemistry. 12:217-222
Various types of trivalent phosphorus compounds (1) brought about reductive debromination of vic-dibromides (2) to afford olefins. The reaction was accelerated by either electron-releasing substituents on the phosphorus of 1 or electron-withdrawing s
Publikováno v:
Tetrahedron Letters. 41:8799-8802
Optically active 3-, 4-, 5-, or 6-methyl substituted seven-membered lactones were prepared by Candida antarctica lipase (CAL)-catalyzed kinetic resolution of the racemic lactones. Among these lactones, only in the case of 5-methylhexanolide ( R )-iso
Publikováno v:
The Journal of Organic Chemistry. 65:4715-4720
Various types of trivalent phosphorus compounds 1 undergo single-electron transfer (SET) to the photoexcited state of rhodamine 6G (Rho+*) in aqueous acetonitrile to quench the fluorescence from Rho+*. The rate constants kp for the overall SET proces
Autor:
Norimasa Yamazaki, Atsuyoshi Ohno, Kiyoko Mizukami, Yuji Mikata, Sawako Matsumoto, Shigenobu Yano, Kayo Hayashi
Publikováno v:
Tetrahedron Letters. 41:1035-1038
NADH model compounds with a dihydroquinoline ring can reduce methyl benzoylformate with very high reactivity and stereospecificity. Chiral column HPLC is effective in the separation and analysis of enantiomers of NADH and NAD model compounds, respect
Publikováno v:
Heteroatom Chemistry. 11:152-157
The reaction of methylviologen (MV2+) with tributylphosphine (1p) and diethylphenylphosphine (1q) in the presence of an alkyl-substituted pyridine (2) was found to take place through a single-electron transfer (SET) from 1 to MV2+ followed by nucleop
Publikováno v:
Tetrahedron Letters. 40:4577-4580
In oxidation of NAD(P)H analog with p-benzoquinone derivatives in the presence of Mg 2+ , it has been found that the reactivity of syn-hydrogen becomes larger as the reduction potential of p -benzoquinone derivative decreases. The selectivity shifts
Publikováno v:
Bioorganic Chemistry. 27:3-19
The reduction of sec -alkyl 2-methyl-3-oxobutyrate with a keto ester reductase from bakers' yeast (YKER-I) is accompanied by simultaneous dynamic and static resolution of chiral centers affording the corresponding (2 R ,3 S ,1′ R )-hydroxy esters p
Publikováno v:
Phosphorus, Sulfur, and Silicon and the Related Elements. 144:497-500
Fluorescence from rhodamine 6G in the photoexcited state (Rh+ *) was quenched by single-electron transfer (SET) from various types of trivalent phosphorus compounds Z3P in aqueous acetonitrile. Dependence of the quenching rate on the oxidation potent