Iwata, Chuzo: search on Z-Library

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1

Reduction of Phthalimides with Sodium Borohydride

HORII, ZEN-ICHI, IWATA, CHUZO, TAMURA, YASUMITSU

Journal:

Journal of Organic Chemistry

Year:

1961

Language:

english

File:

PDF, 490 KB

english, 1961

2

C 2 -Symmetric Bis-sulfoxide: A Novel Chiral Auxiliary for Asymmetric Desymmetrization of Cyclic m eso -1,2-Diols

Maezaki, Naoyoshi, Sakamoto, Atsunobu, Nagahashi, Noboru, Soejima, Motohiro, Li, Ying-Xia, Imamura, Tsuneaki, Kojima, Naoto, Ohishi, Hirofumi, Sakaguchi, Ken-ichi, Iwata, Chuzo, Tanaka, Tetsuaki

Journal:

Journal of Organic Chemistry

Year:

2000

Language:

english

File:

PDF, 130 KB

english, 2000

3

1,6-Asymmetric Induction Utilizing Asymmetric Desymmetrization by Diastereoselective C-O Bond Fission of the 4-Substituted Bicyclic Acetal: Application to a Synthesis of (-)-Frontalin.

MAEZAKI, Naoyoshi, SHOGAKI, Takeshi, UCHIDA, Masashi, TOKUNO, Katsuya, IMAMURA, Tsuneaki, TANAKA, Tetsuaki, IWATA, Chuzo

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1998

File:

PDF, 807 KB

1998

4

Stereoselective total synthesis of (.+-.)-subergorgic acid, a new type of angular triquinane sesquiterpene

Iwata, Chuzo, Takemoto, Yoshiji, Doi, Miyako, Imanishi, Takeshi

Journal:

Journal of Organic Chemistry

Year:

1988

Language:

english

File:

PDF, 929 KB

english, 1988

5

Synthesis of four possible isomers of 9-(bromomethylene)-1,2,5-trimethylspiro(5.5)undeca-1,7-dien-3-one: Structure elucidation of a brominated rearranged chamigrane-type sesquiterpene.

IWATA, CHUZO, AKIYAMA, TOMOHIRO, MIYASHITA, KAZUYUKI

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1988

File:

PDF, 758 KB

1988

6

ChemInform Abstract: Studies on Intramolecular Alkylation of an α-Sulfinyl Vinylic Carbanion: A Novel Route to Chiral 1-Cycloalkenyl Sulfoxides.

Naoyoshi Maezaki, Mayuko Izumi, Sachiko Yuyama, Hiroaki Sawamoto, Chuzo Iwata, Tesuaki Tanaka

Journal:

Year:

2001

File:

PDF, 36 KB

2001

7

Radical Cyclization by Ipso Substitution of the Methoxy Group: Considerable Effect of HMPA on Samarium-Mediated Cyclization.

Hiroaki Ohno, Ryutaro Wakayama, Shin-ichiro Maeda, Hiroki Iwasaki, Mitsuaki Okumura, Chuzo Iwata, Hidenori Mikamiyama, Tetsuaki Tanaka

Journal:

Year:

2003

Language:

english

File:

PDF, 198 KB

english, 2003

8

A model study for the total synthesis of (±)-scopadulin: stereoselective construction of the A/B ring system with desired functionalities

S.M. Abdur Rahman, Hiroaki Ohno, Hitoshi Yoshino, Norifumi Satoh, Mahoto Tsukaguchi, Kazuo Murakami, Chuzo Iwata, Naoyoshi Maezaki, Tetsuaki Tanaka

Journal:

Year:

2001

Language:

english

File:

PDF, 168 KB

english, 2001

9

Total Synthesis of (±)-Scopadulin

Rahman, S. M. Abdur, Ohno, Hiroaki, Murata, Takashi, Yoshino, Hitoshi, Satoh, Norifumi, Murakami, Kazuo, Patra, Debasis, Iwata, Chuzo, Maezaki, Naoyoshi, Tanaka, Tetsuaki

Journal:

Journal of Organic Chemistry

Year:

2001

Language:

english

File:

PDF, 139 KB

english, 2001

10

Asymmetric functionalisation of prochiral 1,3-diols based on an efficient 1,6-chiral induction: the diastereoselective C?O bond fission in chiral ?-arylsulfinyl acetal via two types of chelation control

Iwata, Chuzo, Maezaki, Naoyoshi, Murakami, Manabu, Soejima, Motohiro, Tanaka, Tetsuaki, Imanishi, Takeshi

Journal:

Journal of the Chemical Society Chemical Communications

Year:

1992

Language:

english

File:

PDF, 328 KB

english, 1992

11

Stabilization of neural network by combination with AR model in FastADR control of building air-conditioner facilities

Fukazawa, Taro, Iwata, Yuji, Morikawa, Junji, Ninagawa, Chuzo

Journal:

IEEJ Transactions on Electrical and Electronic Engineering

Year:

2016

Language:

english

File:

PDF, 109 KB

english, 2016

12

Studies on the syntheses of spiro-dienone compounds. VII. Novel synthesis of the spiro[4.5]decane carbon framework.

IWATA, CHUZO, YAMADA, MINORU, SHINOO, YASUTAKA, KOBAYASHI, KAZUE, OKADA, HIDEKO

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1980

File:

PDF, 425 KB

1980

13

Synthetic Studies on Aphidicolane and Stemodane Diterpenes. V. A Facile Formal Total Synthesis of (.+-.)-Aphidicolin via a Lewis Acid-Mediated Stereoselective Spiroannelation.

TANAKA, Tetsuaki, OKUDA, Osamu, MURAKAMI, Kazuo, YOSHINO, Hitoshi, MIKAMIYAMA, Hidenori, KANDA, Atsushi, KIM, Sang-Wong, IWATA, Chuzo

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1995

File:

PDF, 748 KB

1995

14

Synthetic Studies on Aphidicolane and Stemodane Diterpenes. IV. A Stereoselective Formal Total Synthesis of (.+-.)-Aphidicolin.

TANAKA, Tetsuaki, MURAKAMI, Kazuo, OKUDA, Osamu, INOUE, Tetsuya, KURODA, Takeshi, KAMEI, Katsuhide, MURATA, Takashi, YOSHINO, Hitoshi, IMANISHI, Takeshi, KIM, Sang-Won, IWATA, Chuzo

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1995

File:

PDF, 821 KB

1995

15

Studies on Ergot Alkaloids and Its Related Compounds. X. Condensation of Cyclic Ketones and 3-Methylaminopropionates

Horii, Zen-ichi, Iwata, Chuzo, Ninomiya, Ichiya, Imamura, Nobuhiko, Ito, Masayoshi, Tamura, Yasumitsu

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1964

File:

PDF, 1.15 MB

1964

16

Synthetic Studies on Aphidicolane and Stemodane Diterpenes. III. An Alternative Stereoselective Access to Aphidicolane-Type B/C/D-Ring System.

TANAKA, Tetsuaki, MURAKAMI, Kaszuo, OKUDA, Osamu, KURODA, Takeshi, INOUE, Tetsuya, KAMEI, Katsuhide, MURATA, Takashi, YOSHINO, Hitoshi, IMANISHI, Takeshi, IWATA, Chuzo

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1994

File:

PDF, 843 KB

1994

17

Reaction of Conjugated Systems containing Nitrogen. VIII. Structure of Reaction Product of Dimethyl Imidazole-4, 5-dicarboxylate with Anethole

SAKAMOTO, MASANORI, TOMIMATSU, YOSHIO, MOMOSE, TAKEFUMI, IWATA, CHUZO, HANAOKA, MIYOGI

Journal:

YAKUGAKU ZASSHI

Year:

1973

File:

PDF, 471 KB

1973

18

ChemInform Abstract: Asymmetric Desymmetrization of a σ-Symmetric Erythritol Derivative Using C2-Symmetric Bis-sulfoxide: A Total Synthesis of (+)-Aspicilin.

Naoyoshi Maezaki, Ying-Xia Li, Kazumi Ohkubo, Satomi Goda, Chuzo Iwata, Tetsuaki Tanaka

Journal:

Year:

2000

File:

PDF, 38 KB

2000

19

ChemInform Abstract: The First Total Synthesis of (.+-.)-Scopadulin, an Antiviral Aphidicolane Diterpene.

S. M. Abdur Rahman, Hiroaki Ohno, Takashi Murata, Hitoshi Yoshino, Norifumi Satoh, Kazuo Murakami, Debasis Patra, Chuzo Iwata, Naoyoshi Maezaki, Tetsuaki Tanaka

Journal:

Year:

2001

File:

PDF, 35 KB

2001

20

Unexpected O ? S and N ? S alkyl transfer reactions in the reaction of 3-alkyl-2-(N-cyanoimino)thiazolidines with sodium alkoxides: a new synthesis of cimetidine

Iwata, Chuzo, Fujimoto, Michitaro, Watanabe, Mayumi, Kawakami, Tetsuya, Nakamoto, Yumi, Sakae, Masatoshi, Katsurada, Masanori, Imanishi, Takeshi, Tanaka, Tetsuaki

Journal:

Journal of the Chemical Society Chemical Communications

Year:

1992

Language:

english

File:

PDF, 360 KB

english, 1992

21

Phosphonate analogs of pyridoxal phosphate with shortened side chains

Han, Chi Neng A., Iwata, Chuzo, Metzler, David E.

Journal:

Journal of Medicinal Chemistry

Year:

1983

Language:

english

File:

PDF, 601 KB

english, 1983

22

Biogenetic-Type Transformation of α-[α-(Hydroxymethyl)-3, 4-dimethoxystyryl]-3, 4-methylenedioxycinnamic Acid γ-Lactone into Diphyllin

HORII, ZEN-ICHI, OHKAWA, KAZUO, IWATA, CHUZO

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1972

Language:

english

File:

PDF, 338 KB

english, 1972

23

Stereochemistry of the intramolecular cyclization products of methyl 2-bromo-5-(4-hydroxyphenyl)hexanoate: Synthesis of trans- and cis-1,4-dimethyltetralin.

IWATA, CHUZO, TANAKA, TETSUAKI, FUSAKA, TAKAFUMI, MAEZAKI, NAOYOSHI

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1984

File:

PDF, 587 KB

1984

24

Synthetic studies on spiroketal natural products. I. A stereoselective synthesis of (2R,5S)- and (2R,5S)-2-methyl-1,6-dioxaspiro(4.5)decane.

IWATA, CHUZO, HATTORI, KOHJI, KUROKI, TOSHIO, UCHIDA, SHUJI, IMANISHI, TAKESHI

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1988

File:

PDF, 871 KB

1988

25

Difference between two isozymes of (Na++K+)-ATPase in the interaction with omeprazole.

IWATA, Heitaroh, IWATA, Chuzo, MATSUDA, Toshio

Journal:

The Japanese Journal of Pharmacology

Year:

1988

Language:

english

File:

PDF, 451 KB

english, 1988

26

ChemInform Abstract: Efficient One-Step Conversion of Primary Aliphatic Amines into Primary Alcohols: Application to a Model Study for the Total Synthesis of (.+-.)-Scopadulin.

S. M. Abdur Rahman, Hiroaki Ohno, Naoyoshi Maezaki, Chuzo Iwata, Tetsuaki Tanaka

Journal:

Year:

2001

File:

PDF, 32 KB

2001

27

Efficient One-Step Conversion of Primary Aliphatic Amines into Primary Alcohols: Application to a Model Study for the Total Synthesis of (±)-Scopadulin

Rahman, S. M. Abdur, Ohno, Hiroaki, Maezaki, Naoyoshi, Iwata, Chuzo, Tanaka, Tetsuaki

Journal:

Organic Letters

Year:

2000

Language:

english

File:

PDF, 114 KB

english, 2000

28

1-Substituted (S)-3-(p-tolyl)sulphinyl-1,4-dihydropyridines: novel NADH model compounds

Imanishi, Takeshi, Hamano, Yoshimitsu, Yoshikawa, Hirofumi, Iwata, Chuzo

Journal:

Journal of the Chemical Society Chemical Communications

Year:

1988

Language:

english

File:

PDF, 219 KB

english, 1988

29

Asymmetric Desymmetrization of σ-Symmetrical Diols Using Diastereoselective Acetal Cleavage of α-Sulfinyl Acetals

Maezaki, Naoyoshi, Iwata, Chuzo

Journal:

Phosphorus Sulfur and Silicon and the Related Elements

Year:

1997

Language:

english

File:

PDF, 117 KB

english, 1997

30

Studies on Azasteroids and Related Compounds. III. On the Cyclodehydration of Cyclic Ketone and β-Aminoester

HORII, ZENICHI, MORIKAWA, KOICHI, IWATA, CHUZO, NINOMIYA, ICHIYA

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1968

File:

PDF, 665 KB

1968

31

Total synthesis of (.+-.)-pentalenene.

Imanishi, Takeshi, Ninbari, Fusako, Yamashita, Masayuki, Iwata, Chuzo

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1986

File:

PDF, 409 KB

1986

32

Reaction of Conjugated Systems containing Nitrogen. VI. Stereostructure of Adduct between 2, 3-Diphenyl-5, 6-dihydropyrazine and Diethyl Fumarate or N-Methylmaleimide

SAKAMOTO, MASANORI, TOMIMATSU, YOSHIO, MOMOSE, TAKEFUMI, IWATA, CHUZO, HANAOKA, MIYOJI

Journal:

YAKUGAKU ZASSHI

Year:

1972

File:

PDF, 561 KB

1972

33

Enantioselective Cu-catalyzed 1,4-addition of Me3Al to a 4,4-disubstituted cyclohexa-2,5-dienone

Yoshiji Takemoto, Satoru Kuraoka, Naoko Hamaue, Keiichi Aoe, Hajime Hiramatsu, Chuzo Iwata

Journal:

Year:

1996

Language:

english

File:

PDF, 763 KB

english, 1996

34

Asymmetric synthesis of (diene)Fe(CO)3 complexes via catalytic enantioselective alkylation with dialkylzinc

Yoshiji Takemoto, Yasutaka Baba, Izumi Noguchi, Chuzo Iwata

Journal:

Tetrahedron Letters

Year:

1996

Language:

english

File:

PDF, 168 KB

english, 1996

35

Total synthesis of (±)-stemodinone

Tetsuaki Tanaka, Kazuo Murakami, Atsushi Kanda, Debasis Patra, Sachiko Yamamoto, Norifumi Satoh, Sang-Won Kim, Toshimasa Ishida, Yasuko In, Chuzo Iwata

Journal:

Tetrahedron Letters

Year:

1997

Language:

english

File:

PDF, 259 KB

english, 1997

36

Diastereoselective [4 + 2] type cycloaddition of 1-azatriene iron-tricarbonyl complex: Asymmetric synthesis of a piperidien alkaloid

Yoshiji Takemoto, Shigeo Ueda, Jun Takeuchi, Takahisa Nakamoto, Chuzo Iwata

Journal:

Tetrahedron Letters

Year:

1994

Language:

english

File:

PDF, 289 KB

english, 1994

37

A sulfur-assisted regioselective ?-functionalization of cyclopropyl sulfides. Synthetic applications of homoallyl anion synthon

Takemoto, Yoshiji, Ohra, Taiichi, Yonetoku, Yasuhiro, Imanishi, Takeshi, Iwata, Chuzo

Journal:

Journal of the Chemical Society Chemical Communications

Year:

1992

Language:

english

File:

PDF, 213 KB

english, 1992

38

Total synthesis of (?)-solavetivone using enantioselective copper-catalysed conjugate addition of Me3Al to a cyclohexa-2,5-dienone intermediate

Takemoto, Yoshiji, Kuraoka, Satoru, Ohra, Taiichi, Yonetoku, Yasuhiro, Iwata, Chuzo

Journal:

Chemical Communications

Year:

1996

Language:

english

File:

PDF, 313 KB

english, 1996

39

Development and Applications of New Reactions for Construction of Basic Structures of Natural Products

Journal:

YAKUGAKU ZASSHI

Year:

1999

File:

PDF, 1.14 MB

1999

40

Stereoselective synthesis of cis-fused chlorinated bicyclic ethers via CAN-mediated ring-opening of cyclopropyl sulfides

Yoshiji Takemoto, Toshiro Ibuka, Hiroki Hayase, Akiko Iwanaga, Saori Yamagata, Chuzo Iwata, Tetsuaki Tanaka

Journal:

Tetrahedron Letters

Year:

1998

Language:

english

File:

PDF, 243 KB

english, 1998

41

Synthetic studies on spiroketal natural products. II. An enantioselective synthesis of (R)- and (S)-1,7-dioxaspiro[5.5]undecane.

IWATA, CHUZO, FUJITA, MASAHIRO, KUROKI, TOSHIO, HATTORI, KOHJI, UCHIDA, SHUJI, IMANISHI, TAKESHI

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1988

File:

PDF, 749 KB

1988

42

7,7-Dimethyltricyclo[3.3.0.02,8]octan-3-ones as synthetic intermediates. IV. A further examination of cyclopropane ring opening in the tricyclo[3.3.0.02,8]octan-3-one system.

IMANISHI, Takeshi, YAMASHITA, Masayuki, MATSUI, Munetaka, TANAKA, Tetsuaki, IWATA, Chuzo

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1989

File:

PDF, 568 KB

1989

43

Synthetic studies on spirovetivane phytoalexins. V. A stereoselective total synthesis of (.+-.)-oxylubimin.

IWATA, Chuzo, TAKEMOTO, Yoshiji, KUBOTA, Hitoshi, KURODA, Takeshi, IMANISHI, Takeshi

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1990

File:

PDF, 879 KB

1990

44

Total Synthesis of the Antitumor Acetogenin Mosin B (I): Desymmetrization Approach to the Stereodivergent Synthesis of threo/trans/erythro-Type Acetogenins.

Naoyoshi Maezaki, Naoto Kojima, Atsunobu Sakamoto, Hiroaki Tominaga, Chuzo Iwata, Tetsuaki Tanaka, Morito Monden, Bazarragchaa Damdinsuren, Shoji Nakamori

Journal:

Year:

2003

File:

PDF, 70 KB

2003

45

A new and facile route to spiro-ketal skeleton via highly stereoselective CO bond formation by intramolecular Michael addition to δ,β-unsaturated sulfoxides

Chuzo Iwata, Kohji Hattori, Shuji Uchida, Takeshi Imanishi

Journal:

Tetrahedron Letters

Year:

1984

Language:

english

File:

PDF, 257 KB

english, 1984

46

The First Total Synthesis of (±)-Scopadulin, an Antiviral Aphidicolane Diterpene

Rahman, S. M. Abdur, Ohno, Hiroaki, Murata, Takashi, Yoshino, Hitoshi, Satoh, Norifumi, Murakami, Kazuo, Patra, Debasis, Iwata, Chuzo, Maezaki, Naoyoshi, Tanaka, Tetsuaki

Journal:

Organic Letters

Year:

2001

Language:

english

File:

PDF, 117 KB

english, 2001

47

Two types of stereocontrol in the formation of spiro skeletons via a carbonyl ene reaction and a palladium-catalysed carbonyl allylation: a formal synthesis of (+)-perhydrohistrionicotoxin

Maezaki, Naoyoshi, Fukuyama, Hidenori, Yagi, Suguru, Tanaka, Testuaki, Iwata, Chuzo

Journal:

Journal of the Chemical Society Chemical Communications

Year:

1994

Language:

english

File:

PDF, 297 KB

english, 1994

48

Novel Bromolactonization Using a Dimethyl Sulfoxide-Trimethylsilyl Bromide-Amine System; Unusual cis-Addition of trans-6-Substituted 3-Cyclohexene-1-carboxylic Acids

Iwata, Chuzo, Tanaka, Akira, Minuzo, Hiroaki, Miyashita, Kazuyki

Journal:

Year:

1990

Language:

english

File:

PDF, 101 KB

english, 1990

49

Synthetic Studies on Securitinine and Related Compounds. I. Stereochemistries of the Catalytic Hydrogenation Products of 6-(4-Methoxy-2-pyridyl)-1, 4-dioxaspiro [4, 5] decan-6-ol

HORII, ZENICHI, IMANISHI, TAKESHI, TANAKA, TETSUAKI, MORI, IKUKO, HANAOKA, MIYOJI, IWATA, CHUZO

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1972

File:

PDF, 749 KB

1972

50

Synthetic studies on acorane-alaskane sesquiterpenes. I. Total synthesis of (.+-.)-.BETA.-acorenol.

IWATA, CHUZO, NAKAMURA, SHIZUO, SHINOO, YASUTAKA, FUSAKA, TAKAFUMI, OKADA, HIDEKO, KISHIMOTO, MICHIE, UETSUJI, HIDEKAZU, MAEZAKI, NAOYOSHI, YAMADA, MINORU, TANAKA, TETSUAKI

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1985

File:

PDF, 954 KB

1985

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