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51

A novel oxidative azidation of aromatic compounds with hypervalent iodine reagent, phenyliodine(III) bis(trifluoroacetate) (PIFA) and trimethylsilyl azide

Yasuyuki Kita, Hirofumi Tohma, Masanao Inagaki, Kenji Hatanaka, Takayuki Yakura

Journal:

Tetrahedron Letters

Year:

1991

Language:

english

File:

PDF, 246 KB

english, 1991

52

A synthetic approach to discorhabdin alkaloids: Hypervalent iodine oxidation of p-substituted phenol derivatives to azacarbocyclic spirodienones

Yasuyuki Kita, Takayuki Yakura, Hirofumi Tohma, Kazumi Kikuchi, Yasumitsu Tamura

Journal:

Tetrahedron Letters

Year:

1989

Language:

english

File:

PDF, 159 KB

english, 1989

53

Novel and efficient oxidative biaryl coupling reaction of alkylarenes using a hypervalent iodine(III) reagent

Hirofumi Tohma, Minako Iwata, Tomohiro Maegawa, Yasuyuki Kita

Journal:

Tetrahedron Letters

Year:

2002

Language:

english

File:

PDF, 103 KB

english, 2002

54

Hypervalent iodine(III) oxidation catalyzed by quaternary ammonium salt in micellar systems

Hirofumi Tohma, Shinobu Takizawa, Hiroaki Watanabe, Yasuyuki Kita

Journal:

Tetrahedron Letters

Year:

1998

Language:

english

File:

PDF, 227 KB

english, 1998

55

Novel and Direct Nucleophilic Sulfenylation and Thiocyanation of Phenol Ethers Using a Hypervalent Iodine(III) Reagent

Whelan, Brendan A., Tohma, Hirofumi, Kita, Yasuyuki, Takada, Takeshi, Mihara, Sachiko

Journal:

Journal of Organic Chemistry

Year:

1995

Language:

english

File:

PDF, 594 KB

english, 1995

56

Hypervalent Iodine-Induced Nucleophilic Substitution of para-Substituted Phenol Ethers. Generation of Cation Radicals as Reactive Intermediates

Kita, Yasuyuki, Tohma, Hirofumi, Hatanaka, Kenji, Takada, Takeshi, Fujita, Shigekazu, Mitoh, Shizue, Sakurai, Hiromu, Oka, Shigenori

Journal:

Journal of the American Chemical Society

Year:

1994

Language:

english

File:

PDF, 831 KB

english, 1994

57

Molecular Cytogenetic Analysis of Eight Inversion Duplications of Human Chromosome 13q That Each Contain a Neocentromere

Peter E. Warburton, Marisa Dolled, Radma Mahmood, Alicia Alonso, Shulan Li, Kenji Naritomi, Takaya Tohma, Toshiro Nagai, Tomonobu Hasegawa, Hirofumi Ohashi, Lutgarde C.P. Govaerts, Bert H.J. Eussen, J

Journal:

The American Journal of Human Genetics

Year:

2000

Language:

english

File:

PDF, 241 KB

english, 2000

58

The synthesis of head-to-tail (H–T) dimers of 3-substituted thiophenes by the hypervalent iodine(iii)-induced oxidative biaryl coupling reaction

Dohi, Toshifumi, Morimoto, Koji, Kiyono, Yorito, Maruyama, Akinobu, Tohma, Hirofumi, Kita, Yasuyuki

Journal:

Chemical Communications

Year:

2005

Language:

english

File:

PDF, 235 KB

english, 2005

59

Oxidative Biaryl Coupling Reaction of Phenol Ether Derivatives Using a Hypervalent Iodine(III) Reagent

Takada, Takeshi, Arisawa, Mitsuhiro, Gyoten, Michiyo, Hamada, Ryuji, Tohma, Hirofumi, Kita, Yasuyuki

Journal:

Journal of Organic Chemistry

Year:

1998

Language:

english

File:

PDF, 120 KB

english, 1998

60

A novel and efficient oxidative biaryl coupling reaction of phenol ether derivatives using a combination of hypervalent iodine(iii) reagent and heteropoly acid

Hamamoto, Hiromi, Anilkumar, Gopinathan, Tohma, Hirofumi, Kita, Yasuyuki

Journal:

Chemical Communications

Year:

2002

Language:

english

File:

PDF, 133 KB

english, 2002

61

Non-phenolic oxidative coupling of phenol ether derivatives using phenyliodine(III) bis(trifluoroacetate)

Kita, Yasuyuki, Gyoten, Michiyo, Ohtsubo, Makoto, Tohma, Hirofumi, Takada, Takeshi

Journal:

Chemical Communications

Year:

1996

Language:

english

File:

PDF, 206 KB

english, 1996

62

An unexpected intermolecular chiral biaryl coupling reaction induced by a hypervalent iodine(III) reagent: synthesis of potential precursor for ellagitannin

Arisawa, Mitsuhiro, Utsumi, Saori, Nakajima, Makiko, Ramesh, Namakkal G., Tohma, Hirofumi, Kita, Yasuyuki

Journal:

Chemical Communications

Year:

1999

Language:

english

File:

PDF, 61 KB

english, 1999

63

Total synthesis of discorhabdin C: a general aza spiro dienone formation from O-silylated phenol derivatives using a hypervalent iodine reagent

Kita, Yasuyuki, Tohma, Hirofumi, Inagaki, Masanao, Hatanaka, Kenji, Yakura, Takayuki

Journal:

Journal of the American Chemical Society

Year:

1992

Language:

english

File:

PDF, 869 KB

english, 1992

64

An Oxidative Intramolecular Phenolic Coupling Reaction for the Synthesis of Amaryllidaceae Alkaloids Using a Hypervalent Iodine(III) Reagent

Kita, Yasuyuki, Takada, Takeshi, Gyoten, Michiyo, Tohma, Hirofumi, Zenk, Meinhart H., Eichhorn, Jörg

Journal:

Journal of Organic Chemistry

Year:

1996

Language:

english

File:

PDF, 334 KB

english, 1996

65

The First Total Synthesis of Discorhabdin A

Tohma, Hirofumi, Harayama, Yu, Hashizume, Miki, Iwata, Minako, Kiyono, Yorito, Egi, Masahiro, Kita, Yasuyuki

Journal:

Journal of the American Chemical Society

Year:

2003

Language:

english

File:

PDF, 239 KB

english, 2003

66

An Intramolecular Cyclization of Phenol Derivatives Bearing Aminoquinones Using a Hypervalent Iodine Reagent

Kita, Yasuyuki, Takada, Takeshi, Ibaraki, Megumi, Gyoten, Michiyo, Mihara, Sachiko, Fujita, Shigekazu, Tohma, Hirofumi

Journal:

Journal of Organic Chemistry

Year:

1996

Language:

english

File:

PDF, 368 KB

english, 1996

67

Oxidative Intramolecular Phenolic Coupling Reaction Induced by a Hypervalent Iodine(III) Reagent: Leading to Galanthamine-Type Amaryllidaceae Alkaloids

Kita, Yasuyuki, Arisawa, Mitsuhiro, Gyoten, Michiyo, Nakajima, Makiko, Hamada, Ryuji, Tohma, Hirofumi, Takada, Takeshi

Journal:

Journal of Organic Chemistry

Year:

1998

Language:

english

File:

PDF, 126 KB

english, 1998

68

Direct Cyanation of Heteroaromatic Compounds Mediated by Hypervalent Iodine(III) Reagents: In Situ Generation of PhI(III)−CN Species and Their Cyano Transfer

Dohi, Toshifumi, Morimoto, Koji, Takenaga, Naoko, Goto, Akihiro, Maruyama, Akinobu, Kiyono, Yorito, Tohma, Hirofumi, Kita, Yasuyuki

Journal:

Journal of Organic Chemistry

Year:

2007

Language:

english

File:

PDF, 152 KB

english, 2007

69

A novel and direct synthesis of alkylated 2,2?-bithiophene derivatives using a combination of hypervalent iodine(iii) reagent and BF3�Et2O

Tohma, Hirofumi, Iwata, Minako, Maegawa, Tomohiro, Kiyono, Yorito, Maruyama, Akinobu, Kita, Yasuyuki

Journal:

Organic & Biomolecular Chemistry

Year:

2003

Language:

english

File:

PDF, 96 KB

english, 2003

70

Hypervalent Iodine(V)-Induced Asymmetric Oxidation of Sulfides to Sulfoxides Mediated by Reversed Micelles: Novel Nonmetallic Catalytic System

Tohma, Hirofumi, Takizawa, Shinobu, Watanabe, Hiroaki, Fukuoka, Yuko, Maegawa, Tomohiro, Kita, Yasuyuki

Journal:

Journal of Organic Chemistry

Year:

1999

Language:

english

File:

PDF, 109 KB

english, 1999

71

Novel and efficient synthesis of sulfur-containing heterocycles using a hypervalent iodine(III) reagent

Kita, Yasuyuki, Egi, Masahiro, Ohtsubo, Makoto, Saiki, Toyokazu, Takada, Takeshi, Tohma, Hirofumi

Journal:

Chemical Communications

Year:

1996

Language:

english

File:

PDF, 237 KB

english, 1996

72

Hypervalent Iodine(III)-Induced Intramolecular Cyclization of α-(Aryl)alkyl-β-dicarbonyl Compounds: A Convenient Synthesis of Benzannulated and Spirobenzannulated Compounds

Arisawa, Mitsuhiro, Ramesh, Namakkal G., Nakajima, Makiko, Tohma, Hirofumi, Kita, Yasuyuki

Journal:

Journal of Organic Chemistry

Year:

2001

Language:

english

File:

PDF, 106 KB

english, 2001

73

Hypervalent iodine oxidation of N-acyltyramines: synthesis of quinol ethers, spirohexadienones, and hexahydroindol-6-ones

Kita, Yasuyuki, Tohma, Hirofumi, Kikuchi, Kazumi, Inagaki, Masanao, Yakura, Takayuki

Journal:

Journal of Organic Chemistry

Year:

1991

Language:

english

File:

PDF, 556 KB

english, 1991

74

Novel and Direct Oxidative Cyanation Reactions of Heteroaromatic Compounds Mediated by A Hypervalent Iodine(III) Reagent

Dohi, Toshifumi, Morimoto, Koji, Kiyono, Yorito, Tohma, Hirofumi, Kita, Yasuyuki

Journal:

Organic Letters

Year:

2005

Language:

english

File:

PDF, 76 KB

english, 2005

75

Hypervalent iodine(III) induced intramolecular cyclization of substituted phenol ethers bearing an alkyl azido sidechain?a novel synthesis of quinone imine ketals

Kita, Yasuyuki, Egi, Masahiro, Okajima, Akiko, Ohtsubo, Makoto, Takada, Takeshi, Tohma, Hirofumi

Journal:

Chemical Communications

Year:

1996

Language:

english

File:

PDF, 225 KB

english, 1996

76

A unique site-selective reaction of ketones with new recyclable hypervalent iodine(iii) reagents based on a tetraphenylmethane structure

Dohi, Toshifumi, Maruyama, Akinobu, Yoshimura, Misaki, Morimoto, Koji, Tohma, Hirofumi, Shiro, Motoo, Kita, Yasuyuki

Journal:

Chemical Communications

Year:

2005

Language:

english

File:

PDF, 344 KB

english, 2005

77

Total synthesis of sulfur-containing pyrroloiminoquinone marine product, (±)-makaluvamine F using hypervalent iodine(iii)-induced reactions

Kita, Yasuyuki, Egi, Masahiro, Tohma, Hirofumi

Journal:

Chemical Communications

Year:

1999

Language:

english

File:

PDF, 79 KB

english, 1999

78

A novel and direct α-azidation of cyclic sulfides using a hypervalent iodine(III) reagent

Tohma, Hirofumi

Journal:

Chemical Communications

Year:

1998

Language:

english

File:

PDF, 45 KB

english, 1998

79

Novel and efficient synthesis of pyrroloiminoquinones using a hypervalent iodine(III) reagent

Kita, Yasuyuki, Watanabe, Hiroaki, Egi, Masahiro, Saiki, Toyokazu, Fukuoka, Yuko, Tohma, Hirofumi

Journal:

Journal of the Chemical Society Perkin Transactions 1

Year:

1998

Language:

english

File:

PDF, 64 KB

english, 1998

80

Hypervalent iodine induced cyclisation of ?-(aryl)alkyl ?-dicarbonyl derivatives

Kita, Yasuyuki, Okunaka, Ryuichi, Kondo, Maiko, Tohma, Hirofumi, Inagaki, Masanao, Hatanaka, Kenji

Journal:

Journal of the Chemical Society Chemical Communications

Year:

1992

Language:

english

File:

PDF, 191 KB

english, 1992

81

A Novel and Direct Sulfenylation of Phenol Ethers Using Phenyl Iodine(III) Bis(trifluoroacetate) (PIFA) and Various Thiophenols

Kita, Yasuyuki, Takada, Takeshi, Mihara, Sachiko, Tohma, Hirofumi

Journal:

Year:

1995

File:

PDF, 123 KB

1995

82

A Novel and Direct Alkyl Azidation of p -Alkylanisoles Using Phenyl Iodine(III) Bis(trifluoroacetate) (PIFA) and Trimethylsilyl Azide

Kita, Yasuyuki, Tohma, Hirofumi, Takada, Takeshi, Mitoh, Shizue, Fujita, Shigekazu, Gyoten, Michiyo

Journal:

Year:

1994

File:

PDF, 133 KB

1994

83

Development of Novel Reactions Using Hypervalent Iodine(III) Reagents: Total Synthesis of Sulfur-Containing Pyrroloiminoquinone Marine Product, (±)-Makaluvamine F

Kita, Yasuyuki, Egi, Masahiro, Takada, Takeshi, Tohma, Hirofumi

Journal:

Year:

1999

Language:

english

File:

PDF, 322 KB

english, 1999

84

Hypervalent Iodine Oxidation of p -Alkoxy- and Related Phenols: A Facile and Efficient Synthesis of p -Quinones

Tamura, Yasumitsu, Yakura, Takayuki, Tohma, Hirofumi, Ki-kuchi, Kazumi, Kita, Yasuyuki

Journal:

Year:

1989

File:

PDF, 171 KB

1989

85

Facile and Efficient OxidativeTransformation of Primary Alcohols to Methyl Esters in Water UsingHypervalent Iodine(III) Reagents

Tohma, Hirofumi, Maegawa, Tomohiro, Kita, Yasuyuki

Journal:

Year:

2003

Language:

english

File:

PDF, 54 KB

english, 2003

86

Preparation of Novel Cyclic Hypervalent Idoine(III) Compounds Having Azido, Cyano, and Nitrato Ligands

Kita, Yasuyuki, Akai, Shuji, Okuno, Takayuki, Egi, Masahiro, Takada, Takeshi, Tohma, Hirofumi

Journal:

Year:

1996

Language:

english

File:

PDF, 146 KB

english, 1996

87

Efficacy of intensive immunosuppression in exacerbated rheumatoid arthritis-associated interstitial lung disease

Ota, Mineto, Iwasaki, Yukiko, Harada, Hiroaki, Sasaki, Oh, Nagafuchi, Yasuo, Nakachi, Shinichiro, Sumitomo, Shuji, Shoda, Hirofumi, Tohma, Shigeto, Fujio, Keishi, Yamamoto, Kazuhiko

Journal:

Modern Rheumatology

Year:

2016

Language:

english

File:

PDF, 606 KB

english, 2016

88

Novel One-Pot Preparation of 5-Methoxylated Indoline and Indole Derivatives Using a Hypervalent Iodine(III) Reagent

Kita, Yasuyuki, Tohma, Hirofumi, Watanabe, Hiroaki, Takizawa, Shinobu, Maegawa, Tomohiro

Journal:

Year:

1999

Language:

english

File:

PDF, 141 KB

english, 1999

89

Clinical application of neutrophil CD64 quantification for differential diagnosis of acute scrotum

Hayashi, Hirofumi, Mochizuki, Taku, Sanjo, Hiroyuki, Komiya, Akiko, Matsui, Toshihiro, Tohma, Shigeto, Hirai, Kotaro

Journal:

International Journal of Urology

Year:

2016

Language:

english

File:

PDF, 221 KB

english, 2016

90

Hypervalent Iodine(III)-induced Intramolecular Cyclization Reaction of Substituted Phenol Ethers with an Alkyl Azido Side-chain: A Novel and Efficient Synthesis of Quinone Imine Derivatives.

KITA, Yasuyuki, EGI, Masahiro, OHTSUBO, Makoto, SAIKI, Toyokazu, OKAJIMA, Akiko, TAKADA, Takeshi, TOHMA, Hirofumi

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1999

File:

PDF, 793 KB

1999

91

A Novel and Concise Synthesis of Spirodienone Alkaloids Using Hypervalent Iodine(III) Reagents

Hamamoto, Hiromi, Shiozaki, Yukiko, Hata, Kayoko, Tohma, Hirofumi, Kita, Yasuyuki

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

2004

Language:

english

File:

PDF, 129 KB

english, 2004

92

Novel Catalytic Asymmetric Sulfoxidation in Water Using the Hypervalent Iodine Reagent Iodoxybenzene.

TOHMA, Hirofumi, TAKIZAWA, Shinobu, MORIOKA, Hironori, MAEGAWA, Tomohiro, KITA, Yasuyuki

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

2000

File:

PDF, 434 KB

2000

93

Development of Intramolecular Oxidative Phenolic Coupling Reactions Using Hypervalent Iodine (III) Reagents and Their Application to the Synthesis of Amaryllidaceae Alkaloids

ARISAWA, Mitsuhiro, TOHMA, Hirofumi, KITA, Yasuyuki

Journal:

YAKUGAKU ZASSHI

Year:

2000

File:

PDF, 1.32 MB

2000

94

Development of Novel Oxidation Reactions Using Hypervalent Iodine Reagents and Their Application to Total Synthesis of Biologically Active Natural Products

TOHMA, Hirofumi

Journal:

YAKUGAKU ZASSHI

Year:

2000

File:

PDF, 1.18 MB

2000

95

Development of Novel Oxidation Reactions in Water Using Hypervalent Iodine Reagents

Tohma, Hirofumi, Kita, Yasuyuki

Journal:

Journal of Synthetic Organic Chemistry Japan

Year:

2004

Language:

english

File:

PDF, 2.09 MB

english, 2004

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