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1

Chemical modification of chitin and chitosan 2: preparation and water soluble property of N-acylated or N-alkylated partially deacetylated chitins

Hitoshi Sashiwa, Yoshihiro Shigemasa

Journal:

Carbohydrate Polymers

Année:

1999

Langue:

english

Fichier:

PDF, 359 KB

english, 1999

2

Microbial Degradation Behavior in Seawater of Polyester Blends Containing Poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) (PHBHHx)

Sashiwa, Hitoshi, Fukuda, Ryuji, Okura, Tetsuo, Sato, Shunsuke, Nakayama, Atsuyoshi

Journal:

Année:

2018

Langue:

english

Fichier:

PDF, 4.19 MB

english, 2018

3

Chitosan Chemistry and Pharmaceutical Perspectives

M. N. V. Ravi Kumar, R. A. A. Muzzarelli, C. Muzzarelli, H. Sashiwa, A. J. Domb

Journal:

Année:

2005

Fichier:

PDF, 8 KB

2005

4

Chemical modification of chitosan. Part 15: Synthesis of novel chitosan derivatives by substitution of hydrophilic amine using N-carboxyethylchitosan ethyl ester as an intermediate

Hitoshi Sashiwa, Norioki Kawasaki, Atsuyoshi Nakayama, Einosuke Muraki, Hirofumi Yajima, Naoki Yamamori, Yoshifumi Ichinose, Junzo Sunamoto, Sei-ichi Aiba

Journal:

Carbohydrate Research

Année:

2003

Langue:

english

Fichier:

PDF, 175 KB

english, 2003

5

Chitosan Chemistry and Pharmaceutical Perspectives

Kumar, M. N. V. Ravi, Muzzarelli, R. A. A., Muzzarelli, C., Sashiwa, H., Domb, A. J.

Journal:

Chemical Reviews

Année:

2004

Langue:

english

Fichier:

PDF, 3.28 MB

english, 2004

6

Chemical Modification of Chitosan. 13. 1 Synthesis of Organosoluble, Palladium Adsorbable, and Biodegradable Chitosan Derivatives toward the Chemical Plating on Plastics †

Sashiwa, Hitoshi, Kawasaki, Norioki, Nakayama, Atsuyoshi, Muraki, Einosuke, Yamamoto, Noboru, Zhu, Hong, Nagano, Hiroshi, Omura, Yoshihiko, Saimoto, Hiroyuki, Shigemasa, Yoshihiro, Aiba, Sei-ichi

Journal:

Biomacromolecules

Année:

2002

Langue:

english

Fichier:

PDF, 76 KB

english, 2002

7

Effect of Chitosan Oligomer on Wound Healing

MINAMI, Saburo, OKAMOTO, Yoshiharu, MATSUHASHI, Akira, EGUCHI, Hirofumi, EGUCHI, Hirozo, TANIGAWA, Takahiko, TANAKA, Yoshinori, SASHIWA, Hitoshi, SAIMOTO, Hiroyuki, SHIGEMASA, Yoshihiro

Journal:

Journal of the Japan Veterinary Medical Association

Année:

1995

Fichier:

PDF, 2.62 MB

1995

8

Synthesis of chitosan–sugar hybrid and evaluation of its bioactivity

Xuebing Li, Minoru Morimoto, Hitoshi Sashiwa, Hiroyuki Saimoto, Yoshiharu Okamoto, Saburo Minami, Yoshihiro Shigemasa

Journal:

Polymers for Advanced Technologies

Année:

1999

Langue:

english

Fichier:

PDF, 96 KB

english, 1999

9

ChemInform Abstract: Effect of Calcium Reagents on Aldol Reactions of Phenolic Enolates with Aldehydes in Alcohol.

H. SAIMOTO, K. YOSHIDA, T. MURAKAMI, M. MORIMOTO, H. SASHIWA, Y. SHIGEMASA

Journal:

Année:

1997

Langue:

english

Fichier:

PDF, 34 KB

english, 1997

10

ChemInform Abstract: Chemical Modification of Chitosan. Part 5. Homogeneous N,O-Acylation of Chitosan in Dimethyl Sulfoxide with Cyclic Acid Anhydrides.

Hitoshi Sashiwa, Yoshihiro Shigemasa, Rene Roy

Journal:

Année:

2001

Fichier:

PDF, 25 KB

2001

11

ChemInform Abstract: Production of N-Acetyl-D-glucosamine from β-Chitin by Enzymatic Hydrolysis.

Hitoshi Sashiwa, Shizu Fujishima, Naoko Yamano, Norioki Kawasaki, Atsuyoshi Nakayama, Einosuke Muraki, Sei-ichi Aiba

Journal:

Année:

2001

Fichier:

PDF, 27 KB

2001

12

ChemInform Abstract: Production of N-Acetyl-D-glucosamine from Chitin by Enzymatic Hydrolysis

Hitoshi Sashiwa, Naoko Yamano, Shizu Fujishima, Einosuke Muraki, Norioki Kawasaki, Atsuyoshi Nakayama, Koji Sakamotob, Hisato Ohta, Yasushi Nishikata, Kazumi Hiraga, et al. et al.

Journal:

Année:

2002

Fichier:

PDF, 25 KB

2002

13

Chemical Modification of Chitosan, 17

Hitoshi Sashiwa, Naoki Yamamori, Yoshifumi Ichinose, Junzo Sunamoto, Sei-ichi Aiba

Journal:

Macromolecular Bioscience

Année:

2003

Langue:

english

Fichier:

PDF, 59 KB

english, 2003

14

N-Acetyl group distribution in partially deacetylated chitins prepared under homogeneous conditions

Hitoshi Sashiwa, Hiroyuki Saimoto, Yoshihiro Shigemasa, Seiichi Tokura

Journal:

Carbohydrate Research

Année:

1993

Langue:

english

Fichier:

PDF, 399 KB

english, 1993

15

Aldol type reaction of unprotected sugars in methanol

Hiroyuki Saimoto, Setsuo Yatani, Hitoshi Sashiwa, Yoshihiro Shigemasa

Journal:

Tetrahedron Letters

Année:

1995

Langue:

english

Fichier:

PDF, 108 KB

english, 1995

16

Synthesis of threo- and erythro-3-pentulose by aldol type reaction in water

Yoshihiro Shigemasa, Kazuhiro Yokoyama, Hitoshi Sashiwa, Hiroyuki Saimoto

Journal:

Tetrahedron Letters

Année:

1994

Langue:

english

Fichier:

PDF, 270 KB

english, 1994

17

Chemically modified chitin and chitosan as biomaterials

Hitoshi Sashiwa, Sei-ichi Aiba

Journal:

Progress in Polymer Science

Année:

2004

Langue:

english

Fichier:

PDF, 615 KB

english, 2004

18

Utilization of commercial non-chitinase enzymes from fungi for preparation of 2-acetamido-2-deoxy-d-glucose from β-chitin

Mongkol Sukwattanasinitt, Hong Zhu, Hitoshi Sashiwa, Sei-ichi Aiba

Journal:

Carbohydrate Research

Année:

2002

Langue:

english

Fichier:

PDF, 73 KB

english, 2002

19

A new method for the deprotection and reduction of dithioacetals

Yoshihiro Shigemasa, Minoru Ogawa, Hitoshi Sashiwa, Hiroyuki Saimoto

Journal:

Tetrahedron Letters

Année:

1989

Langue:

english

Fichier:

PDF, 115 KB

english, 1989

20

Chemical modification of chitosan 8: preparation of chitosan–dendrimer hybrids via short spacer

H Sashiwa, Y Shigemasa, R Roy

Journal:

Carbohydrate Polymers

Année:

2002

Langue:

english

Fichier:

PDF, 193 KB

english, 2002

21

Chemical modification of chitosan 11: chitosan–dendrimer hybrid as a tree like molecule

Hitoshi Sashiwa, Yoshihiro Shigemasa, Rene Roy

Journal:

Carbohydrate Polymers

Année:

2002

Langue:

english

Fichier:

PDF, 252 KB

english, 2002

22

Enzymatic production of N-acetyl-d-glucosamine from chitin. Degradation study of N-acetylchitooligosaccharide and the effect of mixing of crude enzymes

Hitoshi Sashiwa, Shizu Fujishima, Naoko Yamano, Norioki Kawasaki, Atsuyoshi Nakayama, Einosuke Muraki, Mongkol Sukwattanasinitt, Rath Pichyangkura, Sei-ichi Aiba

Journal:

Carbohydrate Polymers

Année:

2003

Langue:

english

Fichier:

PDF, 99 KB

english, 2003

23

Chemical modification of chitin and chitosan 1: preparation of partially deacetylated chitin derivatives via a ring-opening reaction with cyclic acid anhydrides in lithium chloride/N,N-dimethylacetamide

Y Shigemasa, H Usui, M Morimoto, H Saimoto, Y Okamoto, S Minami, H Sashiwa

Journal:

Carbohydrate Polymers

Année:

1999

Langue:

english

Fichier:

PDF, 132 KB

english, 1999

24

Influence of physico-chemical properties of chitin and chitosan on complement activation

Y. Suzuki, Y. Okamoto, M. Morimoto, H. Sashiwa, H. Saimoto, S.-i. Tanioka, Y. Shigemasa, S. Minami

Journal:

Carbohydrate Polymers

Année:

2000

Langue:

english

Fichier:

PDF, 105 KB

english, 2000

25

Preparation of alcohol-soluble chitin derivatives and radical induction by photo-irradiation

S. Tokura, Y. Uraki, K. Ohmiya, A. Tsutsumi, H. Sashiwa

Journal:

Carbohydrate Polymers

Année:

1990

Langue:

english

Fichier:

PDF, 442 KB

english, 1990

26

Distribution of the acetamide group in partially deacetylated chitins

Hitoshi Sashiwa, Hiroyuki Saimoto, Yoshihiro Shigemasa, Ryu Ogawa, Seiichi Tokura

Journal:

Carbohydrate Polymers

Année:

1991

Langue:

english

Fichier:

PDF, 269 KB

english, 1991

27

Production of N-acetyl-d-glucosamine from α-chitin by crude enzymes from Aeromonas hydrophila H-2330

Hitoshi Sashiwa, Shizu Fujishima, Naoko Yamano, Norioki Kawasaki, Atsuyoshi Nakayama, Einosuke Muraki, Kazumi Hiraga, Kohei Oda, Sei-ichi Aiba

Journal:

Carbohydrate Research

Année:

2002

Langue:

english

Fichier:

PDF, 86 KB

english, 2002

28

Chemical modification of chitosan. Part 9: Reaction of N-carboxyethylchitosan methyl ester with diamines of acetal ending PAMAM dendrimers

H Sashiwa, Y Shigemasa, R Roy

Journal:

Carbohydrate Polymers

Année:

2002

Langue:

english

Fichier:

PDF, 197 KB

english, 2002

29

Preparation and characterization of water-soluble chitin and chitosan derivatives

Masatoshi Sugimoto, Minoru Morimoto, Hitoshi Sashiwa, Hiroyuki Saimoto, Yoshihiro Shigemasa

Journal:

Carbohydrate Polymers

Année:

1998

Langue:

english

Fichier:

PDF, 1.03 MB

english, 1998

30

Complex Formation of Chitosan with Iodine and Its Structure and Spectroscopic Properties--Molecular Assembly and Thermal Hysteresis Behavior

H. Yajima, M. Morita, M. Hashimoto, H. Sashiwa, T. Kikuchi, T. Ishii

Journal:

International Journal of Thermophysics

Année:

2001

Langue:

english

Fichier:

PDF, 245 KB

english, 2001

31

Michael Reaction of Chitosan with Various Acryl Reagents in Water†

Sashiwa, Hitoshi, Yamamori, Naoki, Ichinose, Yoshifumi, Sunamoto, Junzo, Aiba, Sei-ichi

Journal:

Biomacromolecules

Année:

2003

Langue:

english

Fichier:

PDF, 82 KB

english, 2003

32

ChemInform Abstract: Total Synthesis of dl-Ascofuranone and Related Compounds.

H. SAIMOTO, S. OHRAI, H. SASHIWA, Y. SHIGEMASA, T. HIYAMA

Journal:

Année:

1996

Fichier:

PDF, 38 KB

1996

33

Chemical modification of chitosan: preparation of chitosan–sialic acid branched polysaccharide hybrids

Sashiwa, Hitoshi, Makimura, Yutaka, Roy, René, Shigemasa, Yoshihiro

Journal:

Chemical Communications

Année:

2000

Langue:

english

Fichier:

PDF, 130 KB

english, 2000

34

Behaviour of mouse macrophage cell line and mouse fibroblast on copolymers containing cellulose triacetate

Yoshihiro Shigemasa, Hitoshi Sashiwa, Shin-ichiro Tanioka, Hiroyuki Saimito, Takahiko Tanigawa, Yoshinori Tanaka

Journal:

International Journal of Biological Macromolecules

Année:

1992

Langue:

english

Fichier:

PDF, 2.60 MB

english, 1992

35

Synthesis of a Chitosan−Dendrimer Hybrid and Its Biodegradation †

Sashiwa, Hitoshi, Yajima, Hirufumi, Aiba, Sei-ichi

Journal:

Biomacromolecules

Année:

2003

Langue:

english

Fichier:

PDF, 119 KB

english, 2003

36

Lysozyme susceptibility of partially deacetylated chitin

Hitoshi Sashiwa, Hiroyuki Saimoto, Yoshihiro Shigemasa, Ryu Ogawa, Seiichi Tokura

Journal:

International Journal of Biological Macromolecules

Année:

1990

Langue:

english

Fichier:

PDF, 192 KB

english, 1990

37

Chemical Modification of Chitosan. 14: 1 Synthesis of Water-Soluble Chitosan Derivatives by Simple Acetylation

Sashiwa, Hitoshi, Kawasaki, Norioki, Nakayama, Atsuyoshi, Muraki, Einosuke, Yamamoto, Noboru, Aiba, Sei-ichi

Journal:

Biomacromolecules

Année:

2002

Langue:

english

Fichier:

PDF, 59 KB

english, 2002

38

Effect of Calcium Reagents on Aldol Reactions of Phenolic Enolates with Aldehydes in Alcohol

Saimoto, Hiroyuki, Yoshida, Koji, Murakami, Tetsuya, Morimoto, Minoru, Sashiwa, Hitoshi, Shigemasa, Yoshihiro

Journal:

Journal of Organic Chemistry

Année:

1996

Langue:

english

Fichier:

PDF, 152 KB

english, 1996

39

Highly Convergent Synthesis of Dendrimerized Chitosan−Sialic Acid Hybrid 1

Sashiwa, Hitoshi, Shigemasa, Yoshihiro, Roy, René

Journal:

Année:

2001

Langue:

english

Fichier:

PDF, 73 KB

english, 2001

40

Chemical Modification of Chitosan. 10. 1 Synthesis of Dendronized Chitosan−Sialic Acid Hybrid Using Convergent Grafting of Preassembled Dendrons Built on Gallic Acid and Tri(ethylene glycol) Backbone

Sashiwa, Hitoshi, Shigemasa, Yoshihiro, Roy, René

Journal:

Année:

2001

Langue:

english

Fichier:

PDF, 95 KB

english, 2001

41

Chemical Modification of Chitosan: Preparation and Lectin Binding Properties of α-Galactosyl-chitosan Conjugates. Potential Inhibitors in Acute Rejection following Xenotransplantation

Sashiwa, Hitoshi, Thompson, Jennifer M., Das, Sanjoy K., Shigemasa, Yoshihiro, Tripathy, Sasmita, Roy, René

Journal:

Biomacromolecules

Année:

2000

Langue:

english

Fichier:

PDF, 71 KB

english, 2000

42

Chemical Modification of Chitosan. 3. Hyperbranched Chitosan−Sialic Acid Dendrimer Hybrid with Tetraethylene Glycol Spacer

Sashiwa, Hitoshi, Shigemasa, Yoshihiro, Roy, René

Journal:

Année:

2000

Langue:

english

Fichier:

PDF, 133 KB

english, 2000

43

Partially Deacetylated Chitin and Hyaluronan Induce Glycogenolysis in Perfused Rat Liver

Kimura, K., Okamoto, Y., Sashiwa, H., Saimoto, H., Shigemasa, Y., Moriyama, M., Shiota, M., Sugano, T.

Journal:

Journal of Biochemistry

Année:

1995

Langue:

english

Fichier:

PDF, 535 KB

english, 1995

44

Enantioselective transformation of propargyl esters to dihydrofurans

Shigemasa, Yoshihiro, Yasui, Masaru, Ohrai, Shinichiro, Sasaki, Makoto, Sashiwa, Hitoshi, Saimoto, Hiroyuki

Journal:

Journal of Organic Chemistry

Année:

1991

Langue:

english

Fichier:

PDF, 393 KB

english, 1991

45

The Favored Formation of Threo-3-Pentulose in the Formose Reaction

Shigemasa, Yoshihiro, Tanioka, Shin-ichiro, Furukawa, Hiroyuki, Sashiwa, Hitoshi, Saimoto, Hiroyuki

Journal:

Journal of Carbohydrate Chemistry

Année:

1991

Langue:

english

Fichier:

PDF, 319 KB

english, 1991

46

Formose Reactions. XXXI. Synthesis of Dl-2- C -Hydroxymethyl-3-Pentulose from Formaldehyde in N,N -Dimethylformamide-Water Mixed Solvent (I)

Shigemasa, Yoshihiro, Ueda, Takaaki, Sashiwa, Hitoshi, Saimoto, Hiroyuki

Journal:

Journal of Carbohydrate Chemistry

Année:

1991

Langue:

english

Fichier:

PDF, 593 KB

english, 1991

47

Formose Reactions. XXXII. Synthesis of Dl-2- C -Hydroxymethyl-3-Pentulose from Formaldehyde in N,N -Dimethylformamide-Water Mixed Solvent (II)

Shigemasa, Yoshihiro, Ueda, Takaaki, Sashiwa, Hitoshi, Saimoto, Hiroyuki

Journal:

Journal of Carbohydrate Chemistry

Année:

1991

Langue:

english

Fichier:

PDF, 532 KB

english, 1991

48

ChemInform Abstract: A New Method for the Deprotection and Reduction of Dithioacetals.

SHIGEMASA, Y., OGAWA, M., SASHIWA, H., SAIMOTO, H.

Journal:

Année:

1989

Fichier:

PDF, 110 KB

1989

49

Biodegradation of chitin with enzymes and vital components

Takamori, Yoshimori, Morimoto, Minoru, Sashiwa, Hitoshi, Shigemasa, Yoshihiro, Okamoto, Yoshiharu, Minami, Saburo, Matsuhashi, Akira

Journal:

Macromolecular Symposia

Année:

1997

Langue:

english

Fichier:

PDF, 362 KB

english, 1997

50

Transportation of Monosaccharides by Electrodialysis with Ion-Exchange Membranes. I

Shigemasa, Yoshihiro, Yamasaki, Osamu, Sashiwa, Hitoshi, Saimoto, Hiroyuki

Journal:

Bulletin of the Chemical Society of Japan

Année:

1990

Fichier:

PDF, 713 KB

1990