Department of Humanities and Social Sciences

Research Output 1980 2019

1998
21 Citations (Scopus)

Interaction between peroxide ion and phenol group which are coordinated to the same iron(III) ion

Ito, S., Ishikawa, Y., Nishino, S., Kobayashi, T., Ohba, S. & Nishida, Y., 1998 Nov 27, In : Polyhedron. 17, 25-26, p. 4379-4391 13 p.

Research output: Contribution to journalArticle

Peroxides
peroxides
Phenol
phenols
Phenols
3 Citations (Scopus)

Photoreactivities of donor-acceptor crystals between 3,5-dinitrobenzoic acid and N-alkylcarbazoles

Ito, Y., Asaoka, S., Kokubo, K., Ohba, S. & Fukushima, S., 1998, In : Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals. 313, p. 125-134 10 p.

Research output: Contribution to journalArticle

Photoreactivity
carbazoles
Charge transfer
Carbazoles
charge transfer
52 Citations (Scopus)

Polyoxypeptin isolated from Streptomyces: A bioactive cyclic depsipeptide containing the novel amino acid 3-hydroxy-3-methylproline

Umezawa, K., Nakazawa, K., Uemura, T., Ikeda, Y., Kondo, S., Naganawa, H., Kinoshita, N., Hashizume, H., Hamada, M., Takeuchi, T. & Ohba, S., 1998 Mar 12, In : Tetrahedron Letters. 39, 11, p. 1389-1392 4 p.

Research output: Contribution to journalArticle

Depsipeptides
Streptomyces
Amino Acids
Cells
Nuclear magnetic resonance
13 Citations (Scopus)

Solid-state photocyclization of 2,4,6-triisopropyl-4′-(methoxycarbonyl)benzophenone. Evidence for a narrow reaction cavity and a photoenol diradical intermediate

Ito, Y., Yasui, S., Yamauchi, J., Ohba, S. & Kano, G., 1998 Jul 9, In : Journal of Physical Chemistry A. 102, 28, p. 5415-5420 6 p.

Research output: Contribution to journalArticle

photolysis
Photolysis
solid state
Hydrogen
cavities
33 Citations (Scopus)

Solvent and structural effects on catalase-like function of binuclear manganese(II) compounds with μ-phenoxide bridge

Sasaki, Y., Akamatsu, T., Tsuchiya, K., Ohba, S., Sakamoto, M. & Nishida, Y., 1998, In : Polyhedron. 17, 2-3, p. 235-242 8 p.

Research output: Contribution to journalArticle

Manganese Compounds
Manganese compounds
catalase
Catalase
manganese
2 Citations (Scopus)

Somatometric study of Nisei (2nd generation Japanese immigrants), Lima, Peru

Hiroshi, T., 1998, In : Anthropological Science. 106, SUPPL., p. 189-201 13 p.

Research output: Contribution to journalArticle

Peru
immigrant
nutrition
parents
10 Citations (Scopus)

Stereoselective chlorination of steroidal 5,6-olefin by an electrochemical method; a convenient synthesis of blattelastanoside B

Maki, S., Konno, K., Ohba, S. & Takayama, H., 1998 May 21, In : Tetrahedron Letters. 39, 21, p. 3541-3542 2 p.

Research output: Contribution to journalArticle

Chlorination
Halogenation
Pheromones
Alkenes
Agglomeration
14 Citations (Scopus)

Structures and Photoreactivities of 2,4,6-Triisopropylbenzophenones

Fukushima, S., Ito, Y., Hosomi, H. & Ohba, S., 1998 Dec 1, In : Acta Crystallographica Section B: Structural Science. 54, 6, p. 895-906 12 p.

Research output: Contribution to journalArticle

Photoreactivity
Benzoates
Benzoic Acid
rings
benzoic acid
3 Citations (Scopus)

Syntheses of highly oxygen-functionalized derivatives of dihydrodihydroxyphthalic acid in enantiomerically enriched forms

Ikeda, H., Sugai, T., Ohba, S., Ohba, S. & Sugai, T., 1998, In : Bioscience, Biotechnology and Biochemistry. 62, 2, p. 396-400 5 p.

Research output: Contribution to journalArticle

Oxygen
Derivatives
Acids
Hydrolysis
Swine
22 Citations (Scopus)

Synthesis of the C17-C27 fragment of bryostatin 3

Obitsu, T., Ohmori, K., Ogawa, Y., Hosomi, H., Ohba, S., Nishiyama, S. & Yamamura, S., 1998 Oct 1, In : Tetrahedron Letters. 39, 40, p. 7349-7352 4 p.

Research output: Contribution to journalArticle

X-Rays
X rays
bryostatin 3
14 Citations (Scopus)

Synthetic studies on manzamine A: Construction of the tetracyclic ABCE ring substructure I

Li, S., Yamamura, S., Hosomi, H. & Ohba, S., 1998 Apr 23, In : Tetrahedron Letters. 39, 17, p. 2601-2604 4 p.

Research output: Contribution to journalArticle

manzamine A
27 Citations (Scopus)

Synthetic study on a 26-membered macrolide, amphidinolide B: Synthesis of the C1-C13 fragment

Ohi, K., Shima, K., Hamada, K., Saito, Y., Yamada, N., Ohba, S. & Nishiyama, S., 1998 Oct, In : Bulletin of the Chemical Society of Japan. 71, 10, p. 2433-2440 8 p.

Research output: Contribution to journalArticle

Macrolides
Alkylation
X rays
amphidinolide D
erythrose
1 Citation (Scopus)

trans-bis(acetylacetonato-O,O′)(3-methyl-pyridine-N)nitrocobalt(III)

Miyazaki, H., Tsuchimoto, M. & Ohba, S., 1998 Jan 15, In : Acta Crystallographica Section C: Crystal Structure Communications. 54, 1, p. 46-47 2 p.

Research output: Contribution to journalArticle

pyridines
Crystal structure
Atoms
Crystals
cavities
1997
12 Citations (Scopus)

(+) 589-Λ-Amminebromobis(ethylenediamine-N,N′)cobalt(III) dibromide

Nakagawa, H., Ohba, S., Asakura, K., Miura, T., Tanaka, A. & Osanai, S., 1997 Feb 15, In : Acta Crystallographica Section C: Crystal Structure Communications. 53, 2, p. 216-217 2 p.

Research output: Contribution to journalArticle

ethylenediamine
dibromides
Cobalt
chelates
Conformations
7 Citations (Scopus)

(E)-o-stilbenecarboxylic acid and its p-methyl, chloro and methoxy derivatives

Hamazaki, H., Ohba, S., Toda, F. & Takumi, H., 1997 May 15, In : Acta Crystallographica Section C: Crystal Structure Communications. 53, 5, p. 620-624 5 p.

Research output: Contribution to journalArticle

Carboxylic Acids
carboxylic acids
Derivatives
acids
Acids
9 Citations (Scopus)

Characterization of dimeric copper(II) trichloroacetate complexes by electron spin resonance, infrared, and electronic reflectance spectra. Correlation of spectral parameters with molecular geometry

Muto, Y., Horie, H., Tokii, T., Nakashima, M., Koikawa, M., Steward, O. W., Ohba, S., Uekusa, H., Husebye, S., Suzuki, I. & Kato, M., 1997, In : Bulletin of the Chemical Society of Japan. 70, 7, p. 1573-1581 9 p.

Research output: Contribution to journalArticle

Paramagnetic resonance
Copper
Infrared radiation
Geometry
Dimers
21 Citations (Scopus)

Chemical basis for high activity in oxygenation of cyclohexane catalyzed by dinuclear iron(III) complexes with ethereal oxygen containing ligand and hydrogen peroxide system

Ito, S., Okuno, T., Itoh, H., Ohba, S., Matsushima, H., Tokii, T. & Nishida, Y., 1997 Jun, In : Zeitschrift fur Naturforschung - Section B Journal of Chemical Sciences. 52, 6, p. 719-727 9 p.

Research output: Contribution to journalArticle

Oxygenation
Hydrogen Peroxide
Iron
Oxygen
Ligands
32 Citations (Scopus)

Chemical mechanism of dioxygen activation by manganese(III) Schiff base compound in the presence of aliphatic aldehydes

Suzuki, M., Ishikawa, T., Harada, A., Ohba, S., Sakamoto, M. & Nishida, Y., 1997, In : Polyhedron. 16, 15, p. 2553-2561 9 p.

Research output: Contribution to journalArticle

ethylenediamine
Schiff Bases
Manganese
Aldehydes
aldehydes
54 Citations (Scopus)

Oxidation of cyclohexane with hydrogen peroxide catalysed by copper(II) complexes containing N,N-bis(2-pyridylmethyl)-β-alanineamide ligands

Okuno, T., Ohba, S. & Nishida, Y., 1997, In : Polyhedron. 16, 21, p. 3765-3774 10 p.

Research output: Contribution to journalArticle

Oxygenation
oxygenation
Cyclohexane
hydrogen peroxide
Amides
29 Citations (Scopus)

Structures and Magnetic Properties of Dimeric Copper(II) Benzoylformates

Harada, A., Tsuchimoto, M., Ohba, S., Iwasawa, K. & Tokii, T., 1997 Aug 1, In : Acta Crystallographica Section B: Structural Science. 53, 4, p. 654-661 8 p.

Research output: Contribution to journalArticle

Caffeine
carboxylates
caffeine
Copper
Magnetic properties

Structures and magnetic properties of dimeric copper(II) benzoylformates. Erratum

Harada, A., Tsuchimoto, M., Ohba, S., Iwasawa, K. & Tokii, T., 1997, In : Acta Crystallographica Section B: Structural Science. 53, 6, p. 1026 1 p.

Research output: Contribution to journalArticle

Copper
Magnetic properties
diagrams
magnetic properties
copper
3 Citations (Scopus)
Coordination Complexes
Metal complexes
Chelation
Magnetic properties
magnetic properties
73 Citations (Scopus)

Unusually large magnetic interactions observed in hydrogen-bonded nitronyl nitroxides

Yoshioka, N., Irisawa, M., Mochizuki, Y., Kato, T., Inoue, H. & Ohba, S., 1997, In : Chemistry Letters. 3, p. 251-252 2 p.

Research output: Contribution to journalArticle

Bearings (structural)
Hydrogen
Magnetic properties
Derivatives
imidazole
81 Citations (Scopus)

μ-oxo bridged diiron(III) complexes and hydrogen peroxide: Oxygenation and catalase-like activities

Okuno, T., Ito, S., Ohba, S. & Nishida, Y., 1997 Oct 7, In : Journal of the Chemical Society - Dalton Transactions. 19, p. 3547-3551 5 p.

Research output: Contribution to journalArticle

ethylenediamine
Oxygenation
Catalase
Hydrogen Peroxide
Cyclohexanols
1996
19 Citations (Scopus)
Ketones
ketones
Isomers
configurations
isomers
60 Citations (Scopus)

Cyclopentabenzofuran lignan protein synthesis inhibitors from Aglaia odorata

Ohse, T., Ohba, S., Yamamoto, T., Koyano, T. & Umezawa, K., 1996 Jul, In : Journal of Natural Products. 59, 7, p. 650-652 3 p.

Research output: Contribution to journalArticle

Aglaia
Aglaia odorata
protein synthesis inhibitors
Lignans
Protein Synthesis Inhibitors
33 Citations (Scopus)

Formation and reactivity of a peroxide adduct of iron(III) complexes containing substituted phenol derivatives

Ito, S., Suzuki, M., Kobayashi, T., Itoh, H., Harada, A., Ohba, S. & Nishida, Y., 1996 Jun 21, In : Journal of the Chemical Society - Dalton Transactions. 12, p. 2579-2580 2 p.

Research output: Contribution to journalArticle

Peroxides
Phenol
Iron
Oxygen
Derivatives
46 Citations (Scopus)

Interconversion between Polymeric and Monomeric Forms of Oxovanadium(IV) Complexes with Tetradentate Schiff Base Ligands Derived from (R,R)-2,4-Pentanediamine

Kasahara, R., Tsuchimoto, M., Ohba, S., Nakajima, K., Ishida, H. & Kojima, M., 1996, In : Inorganic Chemistry. 35, 26, p. 7661-7665 5 p.

Research output: Contribution to journalArticle

Schiff Bases
imines
Ligands
Crystals
ligands
48 Citations (Scopus)

Interconversion between Polymeric Orange and Monomeric Green Forms of a Schiff Base-Oxovanadium(IV) Complex

Nakajima, K., Kojima, M., Azuma, S., Kasahara, R., Tsuchimoto, M., Kubozono, Y., Maeda, H., Kashino, S., Ohba, S., Yoshikawa, Y. & Fujita, J., 1996 Nov, In : Bulletin of the Chemical Society of Japan. 69, 11, p. 3207-3216 10 p.

Research output: Contribution to journalArticle

ethylenediamine
Schiff Bases
X ray absorption fine structure spectroscopy
Vapors
Crystals
16 Citations (Scopus)

Structural and Magnetic Studies of Dimeric Copper(II) 2,2-Diphenylpropanoato and Triphenylacetato Complexes with Oxygen-Donor Ligands. the Cage Geometry of Dimeric α-Phenyl Substituted Copper(II) Carboxylates

Steward, O. W., Johnston, B. S., Chang, S. C., Harada, A., Ohba, S., Tokii, T. & Kato, M., 1996 Nov, In : Bulletin of the Chemical Society of Japan. 69, 11, p. 3123-3137 15 p.

Research output: Contribution to journalArticle

Copper
Oxygen
Ligands
Geometry
Exchange interactions
3 Citations (Scopus)

Structure and magnetic property of 2-imidazolylnitronyl nitroxide and its metal complexes

Yoshioka, N., Irisawa, M., Aizawa, N., Aoki, T., Inoue, H. & Ohba, S., 1996, In : Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals. 285-286, p. 165-170 6 p.

Research output: Contribution to journalArticle

Imidazolines
Coordination Complexes
Metal complexes
Oxides
Magnetic properties
18 Citations (Scopus)

Synthetic studies on manzamine A: Construction of the tricyclic ABC ring subunit I

Li, S., Ohba, S., Kosemura, S. & Yamamura, S., 1996 Oct 7, In : Tetrahedron Letters. 37, 41, p. 7365-7368 4 p.

Research output: Contribution to journalArticle

manzamine A
39 Citations (Scopus)

Total synthesis of phenoxan and a related pyrone derivative

Ishibashi, Y., Ohba, S., Nishiyama, S. & Yamamura, S., 1996 Apr 22, In : Tetrahedron Letters. 37, 17, p. 2997-3000 4 p.

Research output: Contribution to journalArticle

Myxococcales
Oxazoles
Pyrones
Isomers
HIV-1
1995
18 Citations (Scopus)

Absolute configuration of (+)-aureothin: A toxic metabolite possessing γ-pyrone unit

Ishibashi, Y., Ohba, S., Nishiyama, S. & Yamamura, S., 1995 Dec, In : Bulletin of the Chemical Society of Japan. 68, 12, p. 3643-3649 7 p.

Research output: Contribution to journalArticle

Pyrones
Poisons
Metabolites
Bearings (structural)
Stereochemistry
44 Citations (Scopus)

AgAsF6 as safe alternative to AgClO4 for generating cationic zirconocene species: Utilities in lewis acid-promoted selective CC bond forming reactions

Suzuki, K., Hasegawa, T., Imai, T., Maeta, H. & Ohba, S., 1995 Apr 10, In : Tetrahedron. 51, 15, p. 4483-4494 12 p.

Research output: Contribution to journalArticle

Lewis Acids
Aldehydes
Carbon
Synthetic Chemistry Techniques
Catalysts
16 Citations (Scopus)

Approach to a metallacycling polymerization - reactions of [(η5-C5H5)Co(PPh3)2] with α,β-diynes and Me3SiCCC6H4C6H4CCSiMe3

Shimura, T. I., Ohkubo, A., Aramaki, K., Uekusa, H., Fujita, T., Ohba, S. & Nishihara, H., 1995 Mar 1, In : Inorganica Chimica Acta. 230, 1-2, p. 215-218 4 p.

Research output: Contribution to journalArticle

Diynes
Isomers
organometallic polymers
isomers
polymerization
1994
10 Citations (Scopus)

Bimolecular solid-state photoreactions in the adduct crystals of an aromatic nitro compound with an aromatic amine

Ito, Y., Asaoka, S., Saito, I. & Ohba, S., 1994 Oct 31, In : Tetrahedron Letters. 35, 44, p. 8193-8196 4 p.

Research output: Contribution to journalArticle

Nitro Compounds
Photochemistry
Amines
Hydrogen
Crystals
7 Citations (Scopus)

Chemical properties of β-triketones: Reexamination of Albizati's tandem aldol process

Arimoto, H., Ohba, S., Nishiyama, S. & Yamamura, S., 1994 Jun 27, In : Tetrahedron Letters. 35, 26, p. 4581-4584 4 p.

Research output: Contribution to journalArticle

Chemical properties
Oxidation
3-hydroxybutanal
22 Citations (Scopus)
Iridium
Rhodium
Cobalt
Bond length
Elongation
17 Citations (Scopus)

Synthesis and properties of α-oligothiophenes carrying three cofacially oriented thiophene rings through peri positions of naphthalenes

Kuroda, M., Nakayama, J., Hoshino, M., Furusho, N. & Ohba, S., 1994 Jun 6, In : Tetrahedron Letters. 35, 23, p. 3957-3960 4 p.

Research output: Contribution to journalArticle

Naphthalenes
Thiophenes
naphthalene
Molecules
4 Citations (Scopus)

The intermolecular diels-alder reaction of a 14-membered diene-dienophile pair

Nakata, M., Yasuda, M., Suzuki, S. & Ohba, S., 1994 Jan 1, In : Synlett. 1994, 1, p. 71-74 4 p.

Research output: Contribution to journalArticle

Nuclear magnetic resonance
X rays
Hot Temperature
1993
13 Citations (Scopus)

Facile synthesis of tricyclo[5.4.0.01,5]undec-9-ene-8,11-diones from phenols with an olefin bearing an electron-attracting group at the side chain

Maki, S., Kosemura, S., Yamamura, S. & Ohba, S., 1993 Sep 17, In : Tetrahedron Letters. 34, 38, p. 6083-6086 4 p.

Research output: Contribution to journalArticle

Bearings (structural)
Phenols
Alkenes
Ketones
Isomers
16 Citations (Scopus)

Magneto-structural correlations in dimeric copper(II) carboxylates

Ohba, S., Kato, M., Tokii, T., Muto, Y. & Steward, O. W., 1993 Sep 1, In : Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals. 233, 1, p. 335-344 10 p.

Research output: Contribution to journalArticle

carboxylates
Copper
copper
Electronic structure
interactions
3 Citations (Scopus)

Shal (not) mowe, or double auxiliary constructions in middle english

Ogura, M., 1993 Nov, In : Review of English Studies. 44, 176, p. 539-548 10 p.

Research output: Contribution to journalArticle

9 Citations (Scopus)

Synthesis and characterization of a 14-membered polyketide lactone

Tatsuta, K., Chino, M., Kojima, N., Shinojima, S., Nakata, M., Morooka, M. & Ohba, S., 1993 Jul 30, In : Tetrahedron Letters. 34, 31, p. 4957-4960 4 p.

Research output: Contribution to journalArticle

Polyketides
Lactones
Hydrides
X-Rays
X rays
56 Citations (Scopus)

Synthesis and properties of 1,8-Di(2-thienyl)-, 1,8-bis(5,2′-bithiophene-2-yl)-, 1,8-bis(5,2′: 5′,2″-terthiophene-2-yl)-, and 1,8-bis(5,2′:5′,2″:5″,2″′-quaterthiophene-2-yl)naphthalenes and related compounds

Kuroda, M., Nakayama, J., Hoshino, M., Furusho, N., Kawata, T. & Ohba, S., 1993 Apr 30, In : Tetrahedron. 49, 18, p. 3735-3748 14 p.

Research output: Contribution to journalArticle

Naphthalenes
Bromides
Cations
Crystal structure
Inspection
1992
16 Citations (Scopus)

A novel intramolecular metallacycle-phosphine reaction of an electrochemically oxidized cobaltacyclopentadiene complex

Ohkubo, A., Fujita, T., Ohba, S., Aramaki, K. & Nishihara, H., 1992, In : Journal of the Chemical Society, Chemical Communications. 21, p. 1553-1555 3 p.

Research output: Contribution to journalArticle

phosphine
Electrons
Oxidation
Temperature
46 Citations (Scopus)

Crystal structures and magnetic properties of binuclear copper(II) complexes with alkoxo and benzoato or silanecarboxylato bridges

Kawata, T., Yamanaka, M., Ohba, S., Nishida, Y., Nagamatsu, M., Tokii, T., Kato, M. & Steward, O. W., 1992 Oct 1, In : Bulletin of the Chemical Society of Japan. 65, 10, p. 2739-2747 9 p.

Research output: Contribution to journalArticle

Schiff Bases
Copper
Magnetic properties
Crystal structure
Ligands
16 Citations (Scopus)
phosphine
Ethane
Diamines
X ray analysis
Cobalt