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1

Stereoselective Synthesis of Medium-Sized Cyclic Compounds by Means of Tandem Reactions of a Cyclic Oxosulfonium Ylide with Acetates of Baylis−Hillman Adducts

Hitoshi Akiyama, Tetsuya Fujimoto, Katsuyoshi Ohshima, Kenji Hoshino, Yuko Saito, Ayu Okamoto, Iwao Yamamoto, Akikazu Kakehi, Ryozo Iriye

Journal:

European Journal of Organic Chemistry

Year:

2001

Language:

english

File:

PDF, 424 KB

english, 2001

2

ChemInform Abstract: Synthesis and Structure of Condensed Heterocycles Derived from Intramolecular 1,3-Dipolar Cycloaddition of Transient and Enantiomerically Pure α-Allylamino Nitrones and Nitrile Oxides in a High Level of Diastereoselectivity.

Md. Jashim Uddin, Minoru Kikuchi, Ken Takedatsu, Ken-Ichi Arai, Tetsuya Fujimoto, Jiro Motoyoshiya, Akikazu Kakehi, Ryozo Iriye, Hirofusa Shirai, Iwao Yamamoto

Journal:

Year:

2000

File:

PDF, 37 KB

2000

3

ChemInform Abstract: Diastereoselective Tandem Michael—Intramolecular Wittig Reactions of a Cyclic Phosphonium Ylide with 8-Phenylmenthyl Enoates.

Tomoko Nagao, Takanori Suenaga, Takao Ichihashi, Tetsuya Fujimoto, Iwao Yamamoto, Akikazu Kakehi, Ryozo Iriye

Journal:

Year:

2001

File:

PDF, 28 KB

2001

4

ChemInform Abstract: Stereoselective Synthesis of Medium-Sized Cyclic Compounds by Means of Tandem Reactions of a Cyclic Oxosulfonium Ylide with Acetates of Baylis—Hillman Adducts.

Hitoshi Akiyama, Tetsuya Fujimoto, Katsuyoshi Ohshima, Kenji Hoshino, Yuko Saito, Ayu Okamoto, Iwao Yamamoto, Akikazu Kakehi, Ryozo Iriye

Journal:

Year:

2002

File:

PDF, 30 KB

2002

5

ChemInform Abstract: Reactions of Cyclic Sulfur Ylides with Some Carbonyl Compounds.

Hitoshi Akiyama, Katsuyoshi Ohshima, Tetsuya Fujimoto, Iwao Yamamoto, Ryozo Iriye

Journal:

Year:

2002

File:

PDF, 32 KB

2002

6

Regioselective Synthesis of Phosphonylated Sugars from Reactions of Glycals with Diphenylphosphenium Cation.

Akira Takano, Hiroyuki Fukuhara, Tadao Ohno, Masahiro Kutsuma, Tetsuya Fujimoto, Hirofusa Shirai, Ryozo Iriye, Akikazu Kakehi, Iwao Yamamoto

Journal:

Year:

2004

File:

PDF, 166 KB

2004

7

Preparation of New Nitrogen-Bridged Heterocycles. Part 55. Reinvestigation of the Bromination/Dehydrobromination of Ethyl 3-[2-(Methylthio)indolizin-3-yl]acrylate Derivatives.

Akikazu Kakehi, Suketaka Ito, Hiroyuki Suga, Yuhichi Kobayashi, Peng Zuo, Ryozo Iriye

Journal:

Year:

2004

Language:

english

File:

PDF, 151 KB

english, 2004

8

Reactions of cyclic sulfur ylides with some carbonyl compounds

Hitoshi Akiyama, Katsuyoshi Ohshima, Tetsuya Fujimoto, Iwao Yamamoto, Ryozo Iriye

Journal:

Heteroatom Chemistry

Year:

2002

Language:

english

File:

PDF, 161 KB

english, 2002

9

New constituents of rhododendron japonicum suringer, rhodojaponin-V and -VI

Ryozo Iriye, Ichiro Tomida

Journal:

Tetrahedron Letters

Year:

1972

Language:

english

File:

PDF, 124 KB

english, 1972

10

Stereochemistry of grayanotoxin-II

Zenzaburo Kumazawa, Ryozo Iriye

Journal:

Tetrahedron Letters

Year:

1970

Language:

english

File:

PDF, 215 KB

english, 1970

11

Stereoselective intramolecular aldol condensation of secoketones obtained from grayanotoxin-II

Zenzaburo Kumazawa, Ryozo Iriye

Journal:

Tetrahedron Letters

Year:

1970

Language:

english

File:

PDF, 200 KB

english, 1970

12

The synthesis of (R)-1-(2-oxocyclopentyliden)-2-alkanols and the (S)-forms, and their bio-antimutagenic activity against UV-induced Escherichia coli WP2 B/r Trp−

Ryozo Iriye, Katsuki Takai, Masakazu Noguchi

Journal:

Bioorganic & Medicinal Chemistry Letters

Year:

1997

Language:

english

File:

PDF, 205 KB

english, 1997

13

Quantification ofBacillusspecies in a wastewater treatment system by the molecular analyses

Koji Mori, Ryozo Iriye, Mutsunori Hirata, Kazuhiro Takamizawa

Journal:

Biotechnology and Bioprocess Engineering

Year:

2004

Language:

english

File:

PDF, 754 KB

english, 2004

14

Degradation of 4-amylphenol and 4-hexylphenol by a new activated sludge isolate of Pseudomonas veronii and proposal for a new subspecies status

Bindu Ajithkumar, Vasudevan P. Ajithkumar, Ryozo Iriye

Journal:

Research in Microbiology

Year:

2003

Language:

english

File:

PDF, 277 KB

english, 2003

15

Diastereoselective Tandem Michael−Intramolecular Wittig Reactions of a Cyclic Phosphonium Ylide with 8-Phenylmenthyl Enoates

Nagao, Tomoko, Suenaga, Takanori, Ichihashi, Takao, Fujimoto, Tetsuya, Yamamoto, Iwao, Kakehi, Akikazu, Iriye, Ryozo

Journal:

Journal of Organic Chemistry

Year:

2001

Language:

english

File:

PDF, 57 KB

english, 2001

16

Reaction of a Cyclic Oxosulfonium Ylide with Acetates of the Baylis-Hillman Adducts: Tandem Michael−Intramolecular Corey-Chaykovsky Reactions

Akiyama, Hitoshi, Fujimoto, Tetsuya, Ohshima, Katsuyoshi, Hoshino, Kenji, Yamamoto, Iwao, Iriye, Ryozo

Journal:

Organic Letters

Year:

1999

Language:

english

File:

PDF, 49 KB

english, 1999

17

Regioselective Synthesis of Phosphonylated Sugars from Reactions of Glycals with Diphenylphosphenium Cation

Takano, Akira, Fukuhara, Hiroyuki, Ohno, Tadao, Kutsuma, Masahiro, Fujimoto, Tetsuya, Shirai, Hirofusa, Iriye, Ryozo, Kakehi, Akikazu, Yamamoto, Iwao

Journal:

Journal of Carbohydrate Chemistry

Year:

2003

Language:

english

File:

PDF, 856 KB

english, 2003

18

Enantioselective Synthesis of Ancepsenolide and its Analogs

TAKAI, Katsuki, IRIYE, Ryozo

Journal:

Bioscience Biotechnology and Biochemistry

Year:

2001

Language:

english

File:

PDF, 425 KB

english, 2001

19

Synthesis of 2-(2-Hydroxyalkylidene)cyclopentanones and Their Bio-antimutagenic Activity

Iriye, Ryozo, Nakamura, Atsushi, Takeshita, Masahiko

Journal:

Bioscience Biotechnology and Biochemistry

Year:

1995

Language:

english

File:

PDF, 1.09 MB

english, 1995

20

3-Geranyl-4-hydroxy-5-(3′-methyl-2′-butenyl)benzoic Acid as an Anti-inflammatory Compound from Myrsine seguinii

DONG, Mei, NAGAOKA, Maki, MIYAZAKI, Shintaro, IRIYE, Ryozo, HIROTA, Mitsuru

Journal:

Bioscience Biotechnology and Biochemistry

Year:

1999

File:

PDF, 928 KB

1999

21

Isolation and Synthesis of a New Bio-antimutagen, Petasiphenol, from Scapes of Petasites japonicum

Iriye, Ryozo, Furukawa, Kohji, Nishida, Ritsuo, Kim, Chul-sa, Fukami, Hiroshi

Journal:

Bioscience Biotechnology and Biochemistry

Year:

1992

Language:

english

File:

PDF, 611 KB

english, 1992

22

FUNCTIONALIZATION OF AMINOPHOSPHONIC CHLORIDES AND SYNTHESIS OF PHOSPHORUS HETEROCYCLIC COMPOUNDS

Kasaka, Tatsuji, Kyoda, Makoto, Taketazu, Ken, Kobayashi, Hideki, Fujimoto, Tetsuya, Iriye, Ryozo, Yamamoto, Iwao

Journal:

Phosphorus Sulfur and Silicon and the Related Elements

Year:

1996

Language:

english

File:

PDF, 487 KB

english, 1996

23

Separation of N-TFA-Glycyl and N-TFA- l -Prolyl Dipeptide Methyl Esters by Gas-chromatography

Tomida, Ichiro, Kon’no, Mitoshi, Tokumori, Hitoshi, Yasui, Takeshi, Kayahara, Hiroshi, Iriye, Ryozo

Journal:

Agricultural and Biological Chemistry

Year:

1975

Language:

english

File:

PDF, 601 KB

english, 1975

24

Relationship between the Structure of ( α,β -Unsaturated Carbonyl Compounds and Bio-antimutagenic Activity against UV-Induced Escherichia coli WP2 B/r Trp −

Iriye, Ryozo, Furukawa, Kohji, Takeshita, Masahiko

Journal:

Bioscience Biotechnology and Biochemistry

Year:

1992

Language:

english

File:

PDF, 573 KB

english, 1992

25

Synthesis of Aliphatic Dienedials, ω -Hydroxydienals, ω -Hydroxy-2-alkenals, Vinylketones, an Enon-enal and Aliphatic Dienediones

Iriye, Ryozo, Toya, Tsutomu, Makino, Junji, Aruga, Ryuichi, Doi, Yukio, Handa, Satoshi, Tanaka, Hiroko

Journal:

Agricultural and Biological Chemistry

Year:

1988

Language:

english

File:

PDF, 1.10 MB

english, 1988

26

Studies on Augmenting the Growth-inhibition Activity of α , β -Unsaturated Aldehydes and Ketones against Rhodotorula gracilis

Iriye, Ryozo, Aruga, Ryuichi, Toya, Tsutomu, Makino, Junji, Doi, Yukio, Handa, Satoshi, Tanaka, Hiroko

Journal:

Agricultural and Biological Chemistry

Year:

1988

Language:

english

File:

PDF, 702 KB

english, 1988

27

Norbornadiene-Fused Heterocycles: Syntheses and Cycloaddition Reactions of 2-Aryl-4,7-dihydro-4,7-methano-2 H -isoindoles and 4,7-Dihydro-4,7-methanoisobenzofuran

Kobayashi, Tomoshige, Suda, Hirokazu, Takase, Hiroki, Iriye, Ryozo, Kato, Hiroshi

Journal:

Bulletin of the Chemical Society of Japan

Year:

1995

File:

PDF, 1.12 MB

1995

28

Preparation of New Nitrogen-Bridged Heterocycles. 55. Reinvestigation of the Bromination/Dehydrobromination of Ethyl 3-[2-(Methylthio)indolizin-3-yl]acrylate Derivatives

Kakehi, Akikazu, Ito, Suketaka, Suga, Hiroyuki, Kobayashi, Yuhichi, Zuo, Peng, Iriye, Ryozo

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

2004

Language:

english

File:

PDF, 72 KB

english, 2004

29

Bio-antimutagenic and Microbicidal Activities of 1-(2-Oxocyclopentyliden)-3-Oxadecane and the Derivatives against Mutagenic Escherichia coil WP2 B/r trp.

TAKAI, KATSUKI, NAKAMURA, ATSUSHI, SHIBUTANI, KENJI, IRIYE, RYOZO

Journal:

Biocontrol Science

Year:

2002

Language:

english

File:

PDF, 613 KB

english, 2002

30

Synthesis of (R)- and (S)-13-Hydroxy-10-oxo-trans-11-octadecenoic Acid and Their Antimutagenic Activity.

NOGUCHI, MASAKAZU, TAKAI, KATSUKI, TAKEI, YOSHIHIKO, IRIYE, RYOZO

Journal:

Biocontrol Science

Year:

2000

Language:

english

File:

PDF, 739 KB

english, 2000

31

Formation of 4-hydroxy-3,7-dimethyl-2,6-octadienal (5-hydroxycitral) from 3,7-dimethyl-2,6-octadienal (citral) and its biological activity against sarcoma 180.

IRIYE, Ryozo, YORIFUJI, Takamitsu, TAKEDA, Naohito, TATEMATSU, Akira

Journal:

Agricultural and Biological Chemistry

Year:

1984

Language:

english

File:

PDF, 483 KB

english, 1984

32

Nitration of 2,6-xylenyl acetate with nitronium tetrafluoroborare in acetic anhydride.

IRIYE, Ryozo, MUKAI, Teruo

Journal:

Agricultural and Biological Chemistry

Year:

1976

Language:

english

File:

PDF, 182 KB

english, 1976

33

Synthesis of aliphatic dienedials, .OMEGA.-hydroxydienals, .OMEGA.-hydroxy-2-alkenals, vinylketones, an enon-enal and aliphatic dienediones.

IRIYE, Ryozo, TOYA, Tsutomu, MAKING, Junji, ARUGA, Ryuichi, DOI, Yukio, HANDA, Satoshi, TANAKA, Hiroko

Journal:

Agricultural and Biological Chemistry

Year:

1988

Language:

english

File:

PDF, 488 KB

english, 1988

34

Acyloin rearrangement of 6-dehydro derivatives of grayanotoxin-II.

Journal:

Agricultural and Biological Chemistry

Year:

1978

Language:

english

File:

PDF, 435 KB

english, 1978

35

Biological oxidation of grayanotoxin-II to the 3-dehydro derivative by a microorganism.

IRIYE, Ryozo, HAYASHI, Tetsugo

Journal:

Agricultural and Biological Chemistry

Year:

1977

Language:

english

File:

PDF, 108 KB

english, 1977

36

The reactivity of hydroxyl groups of grayanotoxin-II.

IRIYE, Ryozo, HAYASHI, TETSUGO

Journal:

Agricultural and Biological Chemistry

Year:

1977

Language:

english

File:

PDF, 149 KB

english, 1977

37

Transformation of the A/B ring of 6.BETA.-bromo-4,4-dimethyl-1.ALPHA.,2.ALPHA.-epoxy-3.ALPHA.,5.ALPHA.-oxidocholestane into a 5/7 membered ring.

IRIYE, Ryozo, SASAKURA, Masayuki, IKEDA, Takafumi

Journal:

Agricultural and Biological Chemistry

Year:

1979

Language:

english

File:

PDF, 761 KB

english, 1979

38

Accumulation of highly toxic ericaceous diterpenoids by the geometrid moth, Arichanna gaschkevitchii.

NISHIDA, Ritsuo, FUKAMI, Hiroshi, IRIYE, Ryozo, KUMAZAWA, Zenzaburo

Journal:

Agricultural and Biological Chemistry

Year:

1990

Language:

english

File:

PDF, 348 KB

english, 1990

39

The formation of alkylfurans from (E)-4-hydroxy-2-alkenals and (E)-4-oxo-2-alkenols, and a synthesis of rosefuran.

IRIYE, Ryozo, UNO, Tsuyoshi, OHWA, Ikuo, KONISHI, Asako

Journal:

Agricultural and Biological Chemistry

Year:

1990

Language:

english

File:

PDF, 200 KB

english, 1990

40

Synthesis of 4-hydroxy-2-alkenals and 4-oxo-2-alkenols from 4-tetrahydro-pyranyloxy-2-butenal and their antimutagenic effect against UV-induced Escherichia coli WP2 B/r Trp-.

IRIYE, Ryozo, KONISHI, Asako, UNO, Takeshi, OHWA, Iku

Journal:

Agricultural and Biological Chemistry

Year:

1990

Language:

english

File:

PDF, 234 KB

english, 1990

41

10.1271/nogeikagaku1924.52.4_167

NAKAJIMA, Osamu, IRIYE, Ryozo, HAYASHI, Tetsugo

Journal:

Journal of the agricultural chemical society of Japan

Year:

1978

File:

PDF, 390 KB

1978

42

Racemization in the Coupling Reaction with the Several Methods beside the Activated Ester Methods

TOMIDA, Ichiro, KAYAHARA, Hiroshi, IRIYE, Ryozo

Journal:

Agricultural and Biological Chemistry

Year:

1973

Language:

english

File:

PDF, 504 KB

english, 1973

43

Separation of N-TFA-tripeptide methyl esters by gas-chromatography. I. Separation of N-TFA-glycyl and N-TFA-L-prolyl dipeptide methyl esters by gas-chromatography.

TOMIDA, Ichiro, KON'NO, Mitoshi, TOKUMORI, Hitoshi, YASUI, Takeshi, KAYAHARA, Hiroshi, IRIYE, Ryozo

Journal:

Agricultural and Biological Chemistry

Year:

1975

Language:

english

File:

PDF, 400 KB

english, 1975

44

Racemization in the Coupling Reaction, Pro-Val+Pro, with the Activated Ester Methods

TOMIDA, Ichiro, KAYAHARA, Hiroshi, IRIYE, Ryozo

Journal:

Agricultural and Biological Chemistry

Year:

1973

Language:

english

File:

PDF, 564 KB

english, 1973

45

Transformation of 3,7-dimethyl-2,6-octadienal (citral) into racemic eldanolide (wing gland pheromone of the male African sugar-cane borer; Eldana saccharina (WLK.) (Lepiodaptera, Pyralidae)).

Journal:

Agricultural and Biological Chemistry

Year:

1985

Language:

english

File:

PDF, 241 KB

english, 1985

46

Studies on augmenting the growth-inhibition activity of .ALPHA.,.BETA.-unsaturated aldehydes and ketones against Rhodotorula gracilis.

IRIYE, Ryozo, ARUGA, Ryuichi, TOYA, Tsutomu, MAKING, Junji, DOI, Yukio, HANDA, Satoshi, TANAKA, Hiroko

Journal:

Agricultural and Biological Chemistry

Year:

1988

Language:

english

File:

PDF, 279 KB

english, 1988

47

Suppression of tumor promoter-induced inflammation of mouse ear by ursolic acid and 4,4-dimethylcholestane derivatives.

HIROTA, Mitsuru, MORI, Toshio, YOSHIDA, Motokazu, IRIYE, Ryozo

Journal:

Agricultural and Biological Chemistry

Year:

1990

Language:

english

File:

PDF, 194 KB

english, 1990

48

Reinvestigation of the reduction of di- and trihydroxyphenylalkanones with sodium borohydride in an aqueous alkali.

FUNATSU, Takakazu, IRIYE, Ryozo, TAKAI, Hideyuki, HIROTA, Mitsuru

Journal:

Agricultural and Biological Chemistry

Year:

1989

Language:

english

File:

PDF, 204 KB

english, 1989

49

Transformation of 6.BETA.-bromo-4,4-dimethyl-1.ALPHA.,2.ALPHA.-epoxy-3.ALPHA.,5.ALPHA.-oxidocholestane into 6.BETA.-bromo-4,4-dimethyl-3.ALPHA.,5.ALPHA.-oxido-5(10.RAR.1.BETA.H)abeo-10(19)-cholesten-2.ALPHA.-ol.

IRIYE, Ryozo, SASAKURA, Masayuki

Journal:

Agricultural and Biological Chemistry

Year:

1977

Language:

english

File:

PDF, 139 KB

english, 1977

50

10.1271/nogeikagaku1924.50.9_403

NAKAJIMA, Osamu, IRIYE, Ryozo, HAYASHI, Tetsugo

Journal:

Journal of the agricultural chemical society of Japan

Year:

1976

File:

PDF, 407 KB

1976

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