List of works - Ken Kokubo

Acid-catalyzed transannular cyclization of 3aH-cyclopentene[8]annulene-1,4-(5H,9aH)-diones and some proposed mechanisms.

scientific article

AlCl3-catalyzed tandem acetylation of hydroarylated [60]fullerenes

scientific article published on 27 June 2008

Antioxidant activity of supramolecular water-soluble fullerenes evaluated by beta-carotene bleaching assay

scientific article published on 07 December 2006

Cation-recognized photosensitization in E-Z isomerization of 1,2-dichloroethylene by crowned benzophenones

scientific article published in June 2002

Conformational specificity in photoinduced intramolecular 1,7-hydrogen abstraction of homonaphthoquinones with a spiro-linked dibenzocycloheptene ring

scientific article published on 01 February 2000

Dramatic mechanistic change in acid-catalyzed arylation of azafulleroids depending on their ambident N/C basicity: formation of cyclopentene centered pentakisadduct.

scientific article

Effects of Pin-up Oxygen on [60]Fullerene for Enhanced Antioxidant Activity.

scientific article published on 4 July 2008

Electrochemical reduction of cationic Li@C to neutral Li@C˙: isolation and characterisation of endohedral [60]fulleride

scientific article published in September 2016

Facile and exclusive formation of aziridinofullerenes by acid-catalyzed denitrogenation of triazolinofullerenes

scientific article published on 27 November 2012

Facile synthesis of highly water-soluble fullerenes more than half-covered by hydroxyl groups

scientific article

First synthesis and aggregation behaviour of periconjugated triazoliumfullerene.

scientific article

Hetero Bis-Addition of Spiro-Acetalized or Cyclohexanone Ring to 58π Fullerene Impacts Solubility and Mobility Balance in Polymer Solar Cells.

scientific article published on 8 June 2015

Hydroxylated fullerene: a potential antiinflammatory and antioxidant agent for preventing mouse preterm birth.

scientific article published on 18 July 2015

Ionic conductivity of [Li+@C60](PF6(-)) in organic solvents and its electrochemical reduction to Li+@C60(·-).

scientific article published in August 2013

Kinetic evidence for remote pi-aryl participation in the BF3-catalyzed rearrangement of [2 + 2] photocycloadducts of diarylhomobenzoquinones with diphenylacetylene

scientific article published in October 2004

Kinetic study of the Diels-Alder reaction of Li⁺@C₆₀ with cyclohexadiene: greatly increased reaction rate by encapsulated Li⁺.

scientific article published on 23 July 2014

Kinetic substituent and solvent effects in 1,3-dipolar cycloaddition of diphenyldiazomethanes with fullerenes C60 and C70: a comparison with the addition to TCNE, DDQ, and chloranil

scientific article published in April 2006

Mechanism of novel consecutive rearrangements of cyclobutene-fused diphenylhomobenzoquinones catalyzed by lewis acids.

scientific article

Novel polyhydroxylated fullerene suppresses intracellular oxidative stress together with repression of intracellular lipid accumulation during the differentiation of OP9 preadipocytes into adipocytes.

scientific article published on September 2010

Oxidative deamination of azafulleroids into C60 by peracids

scientific article published on 01 May 2015

Polyhydroxylated fullerene C₆₀(OH)₄₄ suppresses intracellular lipid accumulation together with repression of intracellular superoxide anion radicals and subsequent PPARγ2 expression during spontaneous differentiation of OP9 preadipocytes into adipoc

scientific article published on 01 April 2012

Potential Suppressive Effects of Two C60 Fullerene Derivatives on Acquired Immunity

scientific article

Regio- and endo-selective

scientific article published on 01 June 2000

Regioselective addition of Grignard reagents to tosylazafulleroid and derivatization to 1,2-disubstituted [60]fullerene.

scientific article published on 6 July 2016

Rhodium-Catalyzed Reaction of Aroyl Chlorides with Alkynes

scientific article published on 01 October 1996

Site selectivity switch in Lewis acid catalysis. Mechanism and kinetic simulation of skeletal rearrangement of cyclobutene-fused homoquinones

scientific article published in September 2005

Stereochemistry of Spiro-Acetalized [60]Fullerenes: How the Exo and Endo Stereoisomers Influence Organic Solar Cell Performance

article

Stereoelectronic effects in diastereoselective formation of fulleroids

scientific article published on 30 August 2007

Steric Effects in Photoinduced Electron Transfer Reaction of Halogenated 1,4-Benzoquinones with Donor Olefins

scientific article published on 01 June 2000

Structure of [60]fullerene with a mobile lithium cation inside

scientific article published on 18 July 2018

Substituent effects on the stereochemistry in the [2 + 2] photocycloaddition reaction of homobenzoquinone derivative with variously substituted alkenes and alkynes

scientific article

Super-highly hydroxylated fullerene derivative protects human keratinocytes from UV-induced cell injuries together with the decreases in intracellular ROS generation and DNA damages

scientific article published on 01 October 2010

Supramolecular triplet photosensitizer. Effects of the cation binding mode on E-Z isomerization of 1,2-dichloroethylene

scientific article published in April 2006

Synthesis and photoluminescent properties of geometrically hindered cis-tris(diphenylaminofluorene) as precursors to light-emitting devices.

scientific article published on 13 March 2015

Synthesis and regiochemistry of [60]fullerenyl 2-methylmalonate bisadducts and their facile electron-accepting properties

scientific article

Synthesis of a new class of fullerene derivative Li⁺@C₆₀O⁻(OH)₇ as a "cation-encapsulated anion nanoparticle"

scientific article published on 01 March 2013

Systematic Evaluation and Mechanistic Investigation of Antioxidant Activity of Fullerenols Usingβ-Carotene Bleaching Assay

The Impact of the Polymer Chain Length on the Catalytic Activity of Poly(N-vinyl-2-pyrrolidone)-supported Gold Nanoclusters.

scientific article

Thermal [2+2] cycloaddition of morpholinoenamines with C60 via a single electron transfer

scientific article published on 21 July 2011

List of works by Ken Kokubo

Acid-catalyzed transannular cyclization of 3aH-cyclopentene[8]annulene-1,4-(5H,9aH)-diones and some proposed mechanisms.

AlCl3-catalyzed tandem acetylation of hydroarylated [60]fullerenes

Antioxidant activity of supramolecular water-soluble fullerenes evaluated by beta-carotene bleaching assay

Cation-recognized photosensitization in E-Z isomerization of 1,2-dichloroethylene by crowned benzophenones

Conformational specificity in photoinduced intramolecular 1,7-hydrogen abstraction of homonaphthoquinones with a spiro-linked dibenzocycloheptene ring

Dramatic mechanistic change in acid-catalyzed arylation of azafulleroids depending on their ambident N/C basicity: formation of cyclopentene centered pentakisadduct.

Effects of Pin-up Oxygen on [60]Fullerene for Enhanced Antioxidant Activity.

Electrochemical reduction of cationic Li@C to neutral Li@C˙: isolation and characterisation of endohedral [60]fulleride

Facile and exclusive formation of aziridinofullerenes by acid-catalyzed denitrogenation of triazolinofullerenes

Facile synthesis of highly water-soluble fullerenes more than half-covered by hydroxyl groups

First synthesis and aggregation behaviour of periconjugated triazoliumfullerene.

Hetero Bis-Addition of Spiro-Acetalized or Cyclohexanone Ring to 58π Fullerene Impacts Solubility and Mobility Balance in Polymer Solar Cells.

Hydroxylated fullerene: a potential antiinflammatory and antioxidant agent for preventing mouse preterm birth.

Ionic conductivity of [Li+@C60](PF6(-)) in organic solvents and its electrochemical reduction to Li+@C60(·-).

Kinetic evidence for remote pi-aryl participation in the BF3-catalyzed rearrangement of [2 + 2] photocycloadducts of diarylhomobenzoquinones with diphenylacetylene

Kinetic study of the Diels-Alder reaction of Li⁺@C₆₀ with cyclohexadiene: greatly increased reaction rate by encapsulated Li⁺.

Kinetic substituent and solvent effects in 1,3-dipolar cycloaddition of diphenyldiazomethanes with fullerenes C60 and C70: a comparison with the addition to TCNE, DDQ, and chloranil

Mechanism of novel consecutive rearrangements of cyclobutene-fused diphenylhomobenzoquinones catalyzed by lewis acids.

Novel polyhydroxylated fullerene suppresses intracellular oxidative stress together with repression of intracellular lipid accumulation during the differentiation of OP9 preadipocytes into adipocytes.

Oxidative deamination of azafulleroids into C60 by peracids

Polyhydroxylated fullerene C₆₀(OH)₄₄ suppresses intracellular lipid accumulation together with repression of intracellular superoxide anion radicals and subsequent PPARγ2 expression during spontaneous differentiation of OP9 preadipocytes into adipoc

Potential Suppressive Effects of Two C60 Fullerene Derivatives on Acquired Immunity

Regio- and endo-selective

Regioselective addition of Grignard reagents to tosylazafulleroid and derivatization to 1,2-disubstituted [60]fullerene.

Rhodium-Catalyzed Reaction of Aroyl Chlorides with Alkynes

Site selectivity switch in Lewis acid catalysis. Mechanism and kinetic simulation of skeletal rearrangement of cyclobutene-fused homoquinones

Stereochemistry of Spiro-Acetalized [60]Fullerenes: How the Exo and Endo Stereoisomers Influence Organic Solar Cell Performance

Stereoelectronic effects in diastereoselective formation of fulleroids

Steric Effects in Photoinduced Electron Transfer Reaction of Halogenated 1,4-Benzoquinones with Donor Olefins

Structure of [60]fullerene with a mobile lithium cation inside

Substituent effects on the stereochemistry in the [2 + 2] photocycloaddition reaction of homobenzoquinone derivative with variously substituted alkenes and alkynes

Super-highly hydroxylated fullerene derivative protects human keratinocytes from UV-induced cell injuries together with the decreases in intracellular ROS generation and DNA damages

Supramolecular triplet photosensitizer. Effects of the cation binding mode on E-Z isomerization of 1,2-dichloroethylene

Synthesis and photoluminescent properties of geometrically hindered cis-tris(diphenylaminofluorene) as precursors to light-emitting devices.

Synthesis and regiochemistry of [60]fullerenyl 2-methylmalonate bisadducts and their facile electron-accepting properties

Synthesis of a new class of fullerene derivative Li⁺@C₆₀O⁻(OH)₇ as a "cation-encapsulated anion nanoparticle"

Systematic Evaluation and Mechanistic Investigation of Antioxidant Activity of Fullerenols Usingβ-Carotene Bleaching Assay

The Impact of the Polymer Chain Length on the Catalytic Activity of Poly(N-vinyl-2-pyrrolidone)-supported Gold Nanoclusters.

Thermal [2+2] cycloaddition of morpholinoenamines with C60 via a single electron transfer