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1

Supramolecular Complexation of N-Alkyl- and N,N′-Dialkylpiperazines with Cucurbit[6]uril in Aqueous Solution and in the Solid State

Mikhail V. Rekharsky, Hatsuo Yamamura, Tadashi Mori, Akihiro Sato, Motoo Shiro, Sergey V. Lindeman, Rajendra Rathore, Kouhei Shiba, Young Ho Ko, Narayanan Selvapalam, Kimoon Kim, Yoshihisa Inoue

Journal:

Chemistry - A European Journal

Year:

2009

Language:

english

File:

PDF, 813 KB

english, 2009

2

Sequential Formation of a Ternary Complex among Dihexylammonium, Cucurbit[6]uril, and Cyclodextrin with Positive Cooperativity

Rekharsky, Mikhail V., Yamamura, Hatsuo, Kawai, Masao, Osaka, Issey, Arakawa, Ryuichi, Sato, Akihiro, Ko, Young Ho, Selvapalam, N., Kim, Kimoon, Inoue, Yoshihisa

Journal:

Organic Letters

Year:

2006

Language:

english

File:

PDF, 210 KB

english, 2006

3

The photochemical reactions of nitrogen-rich mesoionic 1,3-diphenyltetrazolium heterocycles and related compounds

Araki, Shuki, Hattori, Hiromi, Ogawa, Koji, Kuzuya, Masashi, Inoue, Tomoko, Yamamura, Hatsuo, Kawai, Masao

Journal:

Journal of the Chemical Society Perkin Transactions 1

Year:

2001

Language:

english

File:

PDF, 139 KB

english, 2001

4

Sequence recognition and self-sorting of a dipeptide by cucurbit[6]uril and cucurbit[7]uril

Rekharsky, Mikhail V., Yamamura, Hatsuo, Ko, Young Ho, Selvapalam, N., Kim, Kimoon, Inoue, Yoshihisa

Journal:

Chemical Communications

Year:

2008

Language:

english

File:

PDF, 768 KB

english, 2008

5

Nitrogen-Rich Mesoionic Compounds from 1,3-Diaryl-5-chlorotetrazolium Salts and Nitrogen Nucleophiles − Synthesis and Properties of 1,3-Diaryl-5-azidotetrazolium Salts

Shuki Araki, Kaori Yamamoto, Misako Yagi, Tomoko Inoue, Hiroyo Fukagawa, Hiromi Hattori, Hatsuo Yamamura, Masao Kawai, Yasuo Butsugan

Journal:

European Journal of Organic Chemistry

Year:

1998

Language:

english

File:

PDF, 500 KB

english, 1998

6

Optical resolution and absolute configuration of N-Benzyloxycarbonyl-α-alkoxyglycines

Masao Kawai, Keiichi Yamada, Kouji Hosoda, Yasuhiro Omori, Shuji Kato, Nobuhiro Nagayama, Seigo Masui, Masao Kamiya, Hatsuo Yamamura, Shuki Araki, Yasuo Butsugan

Journal:

Year:

1999

Language:

english

File:

PDF, 129 KB

english, 1999

7

Allylindation of Cyclopropenes in Organic and Aqueous Media: Switching the Regio- and Stereoselectivity Based on the Chelation with a Hydroxyl Group and the Crystal Structure of the Cyclopropylindium Product

Shuki Araki, Fumio Shiraki, Takashi Tanaka, Hiroyuki Nakano, Kandasamy Subburaj, Tsunehisa Hirashita, Hatsuo Yamamura, Masao Kawai

Journal:

Chemistry - A European Journal

Year:

2001

Language:

english

File:

PDF, 147 KB

english, 2001

8

Capillary zone electrophoretic chiral discrimination using a cationic cyclodextrin derivative: Determination of velocity and association constants of each enantiomer of the amino acid derivative with 6-trimethylammonio-deoxy-β-cyclodextrin

Hatsuo Yamamura, Asako Akasaki, Yuichi Yamada, Kazuaki Kano, Takao Katsuhara, Shuki Araki, Masao Kawai, Takao Tsuda

Journal:

ELECTROPHORESIS

Year:

2001

Language:

english

File:

PDF, 103 KB

english, 2001

9

CD spectral study of Dnp derivatives of amino acids and peptides for their configurational and conformational analysis

Masao Kawai, Ukon Nagai, Yoshihito Inai, Hatsuo Yamamura, Ryougo Akasaka, Shigeru Takagi, Yoshihisa Miwa, Tooru Taga

Journal:

Year:

2005

Language:

english

File:

PDF, 247 KB

english, 2005

10

Crystal structures of Boc-D- and L-Iva-L-Pro-OBZl: Unturned conformation of Aib-Pro sequence unaffected by replacement of Me with Et in Aib

Masao Kawai, Yoshimasa Omori, Hatsuo Yamamura, Yasuo Butsugan, Tooru Taga, Yoshihisa Miwa

Journal:

Year:

1993

Language:

english

File:

PDF, 392 KB

english, 1993

11

ChemInform Abstract: Preparation and Metal Ion-Binding Properties of Gramicidin S Derivatives Carrying Picolinoyl Groups on the Ornithine Side Chains.

Keiichi Yamada, Hirotaka Ozaki, Naoki Kanda, Hatsuo Yamamura, Shuki Araki, Masao Kawai

Journal:

Year:

1999

File:

PDF, 25 KB

1999

12

ChemInform Abstract: Regioselective Allylation and Alkylation of Electron-Deficient Alkenes with Organogallium and Organoindium Reagents.

Shuki Araki, Tomoaki Horie, Motoshi Kato, Tsunehisa Hirashita, Hatsuo Yamamura, Masao Kawai

Journal:

Year:

1999

File:

PDF, 35 KB

1999

13

ChemInform Abstract: Preparation of γ-Heterosubstituted Allylindium and Diindium Reagents and Their Reactions with Carbonyl Compounds.

Tsunehisa Hirashita, Toshiya Kamei, Tomoaki Horie, Hatsuo Yamamura, Masao Kawai, Shuki Araki

Journal:

Year:

1999

File:

PDF, 41 KB

1999

14

ChemInform Abstract: Preparation and Guest Binding of Novel β-Cyclodextrin Dimers Linked with Various Sulfur-Containing Linker Moieties.

Hatsuo Yamamura, Shinichi Yamada, Keiko Kohno, Nozomi Okuda, Shuki Araki, Kyoko Kobayashi, Ryoichi Katakai, Kazuaki Kano, Masao Kawai

Journal:

Year:

2000

File:

PDF, 29 KB

2000

15

ChemInform Abstract: Photochemistry of Mesoionic Compounds. Photochemical Conversion of 5-Azido-1,3-diaryltetrazolium Salts to Novel Tricyclic Mesoions with a Tetrazolo[1,5-a]benzimidazole Skeleton.

Shuki Araki, Hiromi Hattori, Noriyuki Shimizu, Koji Ogawa, Hatsuo Yamamura, Masao Kawai

Journal:

Year:

2000

File:

PDF, 30 KB

2000

16

ChemInform Abstract: Polysulfonylated Cyclodextrins. Part 11. Preparation and Structural Validation of Three Isomeric Pentakis(6-O-mesitylsulfonyl)cyclomaltoheptaoses.

Hatsuo Yamamura, Daisuke Iida, Shuki Araki, Kyoko Kobayashi, Ryoichi Katakai, Kazuaki Kano, Maso Kawai

Journal:

Year:

2000

File:

PDF, 25 KB

2000

17

ChemInform Abstract: A New Preparative Method for Allylic Indium(III) Reagents by Reductive Transmetalation of π-Allylpalladium(II) with Indium(I) Salts.

Shuki Araki, Toshiya Kamei, Tsunehisa Hirashita, Hatsuo Yamamura, Masao Kawai

Journal:

Year:

2000

File:

PDF, 33 KB

2000

18

ChemInform Abstract: A Facile Preparation of Indium Enolates and Their Reformatsky- and Darzens-Type Reactions.

Tsunehisa Hirashita, Kenji Kinoshita, Hatsuo Yamamura, Masao Kawai, Shuki Araki

Journal:

Year:

2000

File:

PDF, 30 KB

2000

19

ChemInform Abstract: Synthesis of New Tricyclic Mesoionic Amides via Photochemical Conversion of a 5-Azido-1-mesityl-3-phenyltetrazolium Salt.

Shuki Araki, Hiromi Hattori, Hatsuo Yamamura, Masao Kawai

Journal:

Year:

2001

File:

PDF, 27 KB

2001

20

ChemInform Abstract: A New Cascade for the One-Pot Synthesis of Linear Homoallylic Alcohols with an Allylic Diindium Reagent.

Tsunehisa Hirashita, Hatsuo Yamamura, Masao Kawai, Shuki Araki

Journal:

Year:

2001

File:

PDF, 28 KB

2001

21

ChemInform Abstract: The Photochemical Reactions of Nitrogen-Rich Mesoionic 1,3-Diphenyltetrazolium Heterocycles and Related Compounds.

Shuki Araki, Hiromi Hattori, Koji Ogawa, Masashi Kuzuya, Tomoko Inoue, Hatsuo Yamamura, Masao Kawai

Journal:

Year:

2002

File:

PDF, 34 KB

2002

22

ChemInform Abstract: Allylindation of Cyclopropenes in Organic and Aqueous Media: Switching the Regio- and Stereoselectivity Based on the Chelation with a Hydroxyl Group and the Crystal Structure of the Cyclopropylindium Product.

Shuki Araki, Fumio Shiraki, Takashi Tanaka, Hiroyuki Nakano, Kandasamy Subburaj, Tsunehisa Hirashita, Hatsuo Yamamura, Masao Kawai

Journal:

Year:

2002

Language:

english

File:

PDF, 40 KB

english, 2002

23

ChemInform Abstract: Umpolung of Vinyloxiranes: Regio- and Stereoselectivity of the In/Pd-Mediated Allylation of Carbonyl Compounds.

Shuki Araki, Keiko Kameda, Jiro Tanaka, Tsunehisa Hirashita, Hatsuo Yamamura, Masao Kawai

Journal:

Year:

2002

File:

PDF, 35 KB

2002

24

Photochemistry of mesoionic compounds. Photochemical conversion of 5-azido-1,3-diaryltetrazolium salts to novel tricyclic mesoions with a tetrazolo[1,5-a]benzimidazole skeleton

Shuki Araki, Hiromi Hattori, Noriyuki Shimizu, Koji Ogawa, Hatsuo Yamamura, Masao Kawai

Journal:

Journal of Heterocyclic Chemistry

Year:

1999

File:

PDF, 355 KB

1999

25

Synthesis of new tricyclic mesoionic amides via photochemical conversion of a 5-azido-1-mesityl-3-phenyltetrazolium salt

Shuki Araki, Hiromi Hattori, Hatsuo Yamamura, Masao Kawai

Journal:

Journal of Heterocyclic Chemistry

Year:

2000

File:

PDF, 335 KB

2000

26

Physalins N and O from Physalis alkekengi

Masao Kawai, Toichi Ogura, Bunsho Makino, Akihide Matsumoto, Hatsuo Yamamura, Yasuo Butsugan, Mitsuo Hayashi

Journal:

Year:

1992

Language:

english

File:

PDF, 399 KB

english, 1992

27

Upon ‘physalin L’ isolated from Physalis minima

Masao Kawai, Bunsho Makino, Hatsuo Yamamura, Yasuo Butsugan

Journal:

Year:

1996

Language:

english

File:

PDF, 199 KB

english, 1996

28

New physalins possessing an additional carbon-carbon bond from Physalis alkekengi var. francheti

Bunsho Makino, Masao Kawai, Koji Kito, Hatsuo Yamamura, Yasuo Butsugan

Journal:

Year:

1995

Language:

english

File:

PDF, 642 KB

english, 1995

29

Synthesis and alkali metal ion binding of poly(3,6-anhydro)-α-cyclodextrins

Hatsuo Yamamura, Hideki Nagaoka, Masao Kawai, Yasuo Butsugan, Kahee Fujita

Journal:

Tetrahedron Letters

Year:

1995

Language:

english

File:

PDF, 133 KB

english, 1995

30

Dependence of guest-binding ability on cavity shape of deformed cyclodextrins

Kahee Fujita, Yuji Okabe, Kazuko Ohta, Hatsuo Yamamura, Tsutomu Tahara, Yasuyoshi Nogami, Toshitaka Koga

Journal:

Tetrahedron Letters

Year:

1996

Language:

english

File:

PDF, 202 KB

english, 1996

31

Indium-mediated reaction of 1,3-dichloro- and 1,3-dibromopropenes with carbonyl compounds. Generation of novel 3,3-diindiopropene

Shuki Araki, Tsunehisa Hirashita, Hidetaka Shimizu, Hatsuo Yamamura, Masao Kawai, Yasuo Butsugan

Journal:

Tetrahedron Letters

Year:

1996

Language:

english

File:

PDF, 170 KB

english, 1996

32

Polysulfonylated cyclodextrins. Part 13: Chemistry of cyclomaltoheptaose tetrasulfonates providing a complete 6-O-sulfonylated cyclomaltoheptaoses library

Hatsuo Yamamura, Hironori Tashiro, Jumpei Kawasaki, Koji Kawamura, Kawai Masao

Journal:

Year:

2007

Language:

english

File:

PDF, 326 KB

english, 2007

33

γ-Cyclodextrins possessing an azido group and a triisopropylbenzenesulfonyl group as useful synthetic and authentic intermediates for unsymmetrically functionalized derivatives

Yoshihide Himeno, Atsushi Miyagawa, Masao Kawai, Hatsuo Yamamura

Journal:

Year:

2009

Language:

english

File:

PDF, 584 KB

english, 2009

34

High γ-selectivity in the coupling of penta-2,4-dienyl- and pent-2-en-4-ynylindium reagents with aldehydes

Tsunehisa Hirashita, Shin'ichirou Inoue, Hatsuo Yamamura, Masao Kawai, Shuki Araki

Journal:

Journal of Organometallic Chemistry

Year:

1997

Language:

english

File:

PDF, 708 KB

english, 1997

35

Diastereoselective reduction of acyclic hydroxyketones and diketones with an indium hydride reagent

Masafumi Yamada, Tomoaki Horie, Masao Kawai, Hatsuo Yamamura, Shuki Araki

Journal:

Year:

1997

Language:

english

File:

PDF, 323 KB

english, 1997

36

Selective preparation of hexakis (6-O-arenesulfonyl) -α-cyclodextrin

Fujita Kahee, Ohta Kazuko, Masunari Kozo, Obe Ken-ichi, Yamamura Hatsuo

Journal:

Tetrahedron Letters

Year:

1992

Language:

english

File:

PDF, 164 KB

english, 1992

37

A complete set of 6A-azido-6A-deoxy-6X-0-sulfonyl-β0-cyclodextrins

Kahee Fujita, Hatsuo Yamamura, Yoshimitsu Egashira, Taiji Imoto

Journal:

Tetrahedron Letters

Year:

1992

Language:

english

File:

PDF, 230 KB

english, 1992

38

Regioselective allylation and alkylation of electron-deficient alkenes with organogallium and organoindium reagents

Shuki Araki, Tomoaki Horie, Motoshi Kato, Tsunehisa Hirashita, Hatsuo Yamamura, Masao Kawai

Journal:

Tetrahedron Letters

Year:

1999

Language:

english

File:

PDF, 186 KB

english, 1999

39

Chelation-controlled regio- and stereoselective allylindation of norbornenols

Shuki Araki, Toshiya Kamei, Yukimitsu Igarashi, Tsunehisa Hirashita, Hatsuo Yamamura, Masao Kawai

Journal:

Tetrahedron Letters

Year:

1999

Language:

english

File:

PDF, 232 KB

english, 1999

40

Assay for the (R)- and (S)-enantiomers of salsolinols in biological samples and foods with ion-pair high-performance liquid chromatography using β-cyclodextrin as a chiral mobile phase additive

Yulin Deng, Wakako Maruyama, Masao Kawai, Philippe Dostert, Hatsuo Yamamura, Tsutomu Takahashi, Makoto Naoi

Journal:

Journal of Chromatography B: Biomedical Sciences and Applications

Year:

1997

Language:

english

File:

PDF, 517 KB

english, 1997

41

Optical resolution of N-carbobenzoxy-α-methoxyglycine

Masao Kawai, Yoshimasa Omori, Hatsuo Yamamura, Yasuo Butsugan

Journal:

Tetrahedron: Asymmetry

Year:

1992

Language:

english

File:

PDF, 195 KB

english, 1992

42

Convenient enantioselective preparation of salsolinol-1-carboxylic acid

Masao Kawai, Yulin Deng, Ikuko Kimura, Hatsuo Yamamura, Shuki Araki, Makoto Naoi

Journal:

Tetrahedron: Asymmetry

Year:

1997

Language:

english

File:

PDF, 215 KB

english, 1997

43

Calorimetric and NMR studies on the direct correlation between supramolecular complex structure and the thermodynamics of N-benzyloxycarbonyl-L-aspartic and -glutamic acid inclusion complexes with mono- and bis(trimethylammonio)-β-cyclodextrins

Hatsuo Yamamura, Mikhail Rekharsky, Asako Akasaki, Schuki Araki, Masao Kawai, Yoshihisa Inoue

Journal:

Journal of Physical Organic Chemistry

Year:

2001

Language:

english

File:

PDF, 179 KB

english, 2001

44

Stereochemistry of protected ornithine side chains in gramicidin S derivatives and their resistance to N-methylation

Masao Kawai, Tatsuo Yamamoto, Keiichi Yamada, Masashi Yamaguchi, Shigehiro Kurobe, Hatsuo Yamamura, Shuki Araki, Yasuo Butsugan, Kyoko Kobayashi, Ryoichi Katakai, Kazuki Saito, Terumi Nakajima

Journal:

International Journal of Peptide Research and Therapeutics

Year:

1998

Language:

english

File:

PDF, 578 KB

english, 1998

45

Preparation of a cyclodextrin dimer linked with a bis(picolinyl)cystine moiety and its intra- and intermolecular inclusion behavior

Hatsuo Yamamura, Kousuke Satake, Rieko Hirasawa, Shinichi Yamada, Masao Kawai

Journal:

Journal of Inclusion Phenomena and Macrocyclic Chemistry

Year:

2007

Language:

english

File:

PDF, 151 KB

english, 2007

46

A complete set of β -cyclodextrins 6A, 6X-diactivated by two different sulfonyl groups

Kahee Fujita, Hatsuo Yamamura, Taiji Imoto

Journal:

Tetrahedron Letters

Year:

1991

Language:

english

File:

PDF, 224 KB

english, 1991

47

Stereodivergent allylindation of cyclopropenes. Remarkable stereodirection and acceleration by neighbouring carboxyl and hydroxyl groups

Shuki Araki, Hiroyuki Nakano, Kandasamy Subburaj, Tsunehisa Hirashita, Kensuke Shibutani, Hatsuo Yamamura, Masao Kawai, Yasuo Butsugan

Journal:

Tetrahedron Letters

Year:

1998

Language:

english

File:

PDF, 248 KB

english, 1998

48

Stereochemistry of protected ornithine side chains in gramicidin S derivatives and their resistance to N-methylation

Masao Kawai, Tatsuo Yamamoto, Keiichi Yamada, Masashi Yamaguchi, Shigehiro Kurobe, Hatsuo Yamamura, Shuki Araki, Yasuo Butsugan, Kyoko Kobayashi, Ryoichi Katakai, Kazuki Saito, Terumi Nakajima

Journal:

International Journal of Peptide Research and Therapeutics

Year:

1998

Language:

english

File:

PDF, 103 KB

english, 1998

49

Stereochemistry of Protected Ornithine Side Chains of Gramicidin S Derivatives: X-ray Crystal Structure of the Bis-Boc-tetra-N-methyl Derivative of Gramicidin S

Yamada, Keiichi, Unno, Masafumi, Kobayashi, Kyoko, Oku, Hiroyuki, Yamamura, Hatsuo, Araki, Shuki, Matsumoto, Hideyuki, Katakai, Ryoichi, Kawai, Masao

Journal:

Journal of the American Chemical Society

Year:

2002

Language:

english

File:

PDF, 156 KB

english, 2002

50

Two alternative conformational states of ?,?-dialkylglycyl-L-prolyl sequences governed by presence/absence of an NH group directly following the proline residue. X-Ray crystal and molecular structures of Boc-D-Iva-L-Pro-NHBzl and Boc-L-Iva-L-Pro-NHBzl

Kawai, Masao, Omori, Yoshimasa, Yamamura, Hatsuo, Butsugan, Yasuo, Taga, Tooru, Miwa, Yoshihisa

Journal:

Journal of the Chemical Society Perkin Transactions 1

Year:

1995

Language:

english

File:

PDF, 1007 KB

english, 1995