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1

The Reaction of 6-Methyl-7-azido-5,8-quinolinediones with Cyclic Secondary Amines. A Convenient Synthesis of 6-Substituted Aminomethyl-7-amino-5,8-quinolinediones

Yoshina, Shigetaka, Kuo, Hsien-Saw

Journal:

Year:

1976

Language:

english

File:

PDF, 61 KB

english, 1976

2

Synthesis of 4H-furo[3,2-b]indole derivatives A new heterocyclic ring system

Akira Tanaka, Kenichi Yakushijin, Shigetaka Yoshina

Journal:

Journal of Heterocyclic Chemistry

Year:

1977

File:

PDF, 290 KB

1977

3

Synthesis of Furo[2,3-c]isoquinoline Derivatives

Kazuo Ito, Kenichi Yakushijin, The Late Shigetaka Yoshina, Akira Tanaka, Katsumi Yamamoto

Journal:

Journal of Heterocyclic Chemistry

Year:

1978

File:

PDF, 332 KB

1978

4

Synthesis of 4H-furo[3,2-b]indoles. II. Bromination, acylation and nitration of 4H- and 4-benzoylfuro[3,2-b]indoles

Akira Tanaka, Kenichi Yakushijin, The Late Shigetaka Yoshina

Journal:

Journal of Heterocyclic Chemistry

Year:

1978

File:

PDF, 206 KB

1978

5

Studies on furan derivatives. II. Preparation of α-substituted β-2-(5-nitrofuryl)vinylamines

Akira Tanaka, Toshinao Usui, The Late Shigetaka Yoshina

Journal:

Journal of Heterocyclic Chemistry

Year:

1978

File:

PDF, 385 KB

1978

6

Synthesis and reaction of 2,7-dimethylpyrrolo[1,2-A]quinoline with electrophilic reagents

Hsien-Saw Kuo, Shigetaka Yoshina The late, Yih-Chih Tung

Journal:

Journal of Heterocyclic Chemistry

Year:

1979

File:

PDF, 250 KB

1979

7

Condensed Pyridazines. Part I. Synthesis of 2-Oxo-2H-pyrano[2,3-D]-pyridazine and 2-Oxo-2H-pyrano[2,3-c] pyridazine

Isamu Maeba, Masahiko Ando, Shigetaka Yoshina The Late, Raymond N. Castle

Journal:

Journal of Heterocyclic Chemistry

Year:

1979

File:

PDF, 210 KB

1979

8

Studies on furan derivatives IV. A simple preparation of α-substituted β-(5-nitro-2-furyl)ethynyls from α-substituted β-(5-nitro-2-furyl)vinylamines

Akira Tanaka, Toshinao Usui, (The Late) Shigetaka Yoshina

Journal:

Journal of Heterocyclic Chemistry

Year:

1979

File:

PDF, 204 KB

1979

9

Synthesis of 4H-furo[3,2-b]indole derivatives. III. Preparation of 4H-furo[3,2-b]indole-2-carboxylic acid derivatives

Akira Tanaka, Kenichi Yakushijin, The Late Shigetaka Yoshina

Journal:

Journal of Heterocyclic Chemistry

Year:

1979

File:

PDF, 259 KB

1979

10

Electronic Aspect of the Antibacterial Activity of Nitrofuran Derivatives

Hirano, Koichi, Yoshina, Shigetaka, Okamura, Kimiko, Suzuka, Isamu

Journal:

Bulletin of the Chemical Society of Japan

Year:

1967

Language:

english

File:

PDF, 8.55 MB

english, 1967

11

Studies on Heterocyclic Compounds. X. Synthesis of Furo [2, 3-d] pyridazine Derivatives. (1)

YOSHINA, SHIGETAKA, MAEBA, ISAMU, HIRANO, KOICHI

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1969

File:

PDF, 624 KB

1969

12

Studies on Heterocyclic Compounds. XV. Synthesis of Furo [2, 3-d] pyridazine Derivatives.(4). Synthesis of 2-[2-(5-Nitro-2-furyl) vinyl]-4, 7-dichlorofuro-[2, 3-d] pyridazine and Related Compounds by the Wittig Reaction

YOSHINA, SHIGETAKA, MAEBA, ISAMU

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1971

Language:

english

File:

PDF, 609 KB

english, 1971

13

Studies on Heterocyclic Compounds. XVIII. Synthesis of Furo [2, 3-d] pyridazine Derivatives. (6). Nitration of 4-Oxo-7-chloro-4, 5-dihydrofuro [2, 3-d] pyridazine

YOSHINA, SHIGETAKA, MAEBA, ISAMU

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1972

File:

PDF, 518 KB

1972

14

Synthesis and antimicrobial activity of methyl 5-nitro-3,4-diphenylfuran-2-carboxylate and related compounds.

KUO, SHENGCHU, WU, CHUNHSIUNG, HUANG, LIJIAU, YAMAMOTO, KATSUMI, YOSHINA, SHIGETAKA

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1981

File:

PDF, 1.01 MB

1981

15

Studies on Heterocyclic Compounds. XVI. Synthesis of Furo [2, 3-d] pyridazine Derivatives.(5). Synthesis of 4, 7-Dichlorofuro [2, 3-d] pyridazine-2-carboxaldehyde and some of Its Derivatives

YOSHINA, SHIGETAKA, MAEBA, ISAMU, LAOHATHAI, VALLAPHA

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1972

Language:

english

File:

PDF, 769 KB

english, 1972

16

Studies on Heterocyclic Compounds. XII. Synthesis of Furo [2, 3-d]-pyridazine Derivatives. (3). Synthesis of 2-Methyl-8-chloro-6-substituted-sym-triazolo [2, 1-f] furo [2, 3-d]-pyridazine Derivatives

YOSHINA, SHIGETAKA, MAEBA, ISAMU

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1970

File:

PDF, 522 KB

1970

17

Studies on Heterocyclic Compounds. XI. Synthesis of Furo [2, 3-d] pyridazine Derivatives. (2). Carbonyl Bridge Compound of 2-Methyl-4, 7-dichlorofuro [2, 3-d] pyridazine

YOSHINA, SHIGETAKA, MAEBA, ISAMU

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1970

File:

PDF, 363 KB

1970

18

Studies on Heterocyclic Compounds. XIX. Synthesis of Furo [2, 3-d]-pyridazine Derivatives.(7). Nitration of Furo [2, 3-d] pyridazines in the 5 Position

YOSHINA, SHIGETAKA, MAEBA, ISAMU

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1973

Language:

english

File:

PDF, 420 KB

english, 1973

19

Syntheses of Furan Derivatives. VII

Saikachi, Haruo, Yoshina, Shigetaka

Journal:

YAKUGAKU ZASSHI

Year:

1952

File:

PDF, 760 KB

1952

20

Synthetic Studies on Fungicidal Agents. III

Saikachi, Haruo, Yoshina, Shigetaka

Journal:

YAKUGAKU ZASSHI

Year:

1957

Language:

english

File:

PDF, 564 KB

english, 1957

21

Studies on Heterocyclic Compounds. V. : Synthesis of 3, 4-Dihydroxy-2, 5-dicarbomethoxyfuran Derivatives

YOSHINA, SHIGETAKA, YAMAMOTO, KATSUMI

Journal:

YAKUGAKU ZASSHI

Year:

1968

File:

PDF, 596 KB

1968

22

Studies on Heterocyclic Compounds. XXII. Synthesis of 3, 4-Dihydroxy-2, 5-dicarbomethoxyfuran Derivatives. (2)

YOSHINA, SHIGETAKA, YAMAMOTO, KATSUMI

Journal:

YAKUGAKU ZASSHI

Year:

1974

File:

PDF, 934 KB

1974

23

Studies on Heterocyclic Compounds. XXIII. Synthesis of 3, 4-Diphenyl Furan Derivatives. (1)

YOSHINA, SHIGETAKA, YAMAMOTO, KATSUMI

Journal:

YAKUGAKU ZASSHI

Year:

1974

File:

PDF, 1.07 MB

1974

24

Studies on Heterocyclic Compounds. VIII. : Synthesis of Methyl 2-Amino-5-methoxycarbonyl-4-thiazolylacetate and Methyl 2-Amino-5-methoxycarbonyl-4-oxazolylacetate Derivatives

YOSHINA, SHIGETAKA, IZUMI, KIHACHIRO, MURAKAMI, SHOJI

Journal:

YAKUGAKU ZASSHI

Year:

1968

File:

PDF, 574 KB

1968

25

Studies on Heterocyclic Compounds. XXVIII. Synthesis of 5-(3-Pyridyl)-and 5-(3-Quinolyl)furfural Derivatives

YOSHINA, SHIGETAKA, TANAKA, AKIRA, WU, CHUN-HSIUNG, KUO, HSIEN-SAW

Journal:

YAKUGAKU ZASSHI

Year:

1975

File:

PDF, 690 KB

1975

26

Studies on Heterocyclic Compounds. XXIV. Syntheses and Antimicrobial Activity of 3, 4-Diphenyl Furan Derivatives. (2)

YOSHINA, SHIGETAKA, YAMAMOTO, KATSUMI

Journal:

YAKUGAKU ZASSHI

Year:

1975

File:

PDF, 815 KB

1975

27

Studies on Heterocyclic Compounds. XXVII. Syntheses and Antimicrobial Activity of 5-Nitro-3, 4-diphenyl-2-furaldehyde and It's Derivatives (4)

YAMAMOTO, KATSUMI, YOSHINA, SHIGETAKA

Journal:

YAKUGAKU ZASSHI

Year:

1975

File:

PDF, 846 KB

1975

28

Studies on Heterocyclic Compounds. XLI : Synthesis of 5, 8-Quinolinequinone Derivatives. (2). Synthesis of 6 and 7-Amino-5, 8-quinolinequinone Derivatives

KUO, HSIENSAW, YOSHINA, SHIGETAKA

Journal:

YAKUGAKU ZASSHI

Year:

1977

File:

PDF, 687 KB

1977

29

Studies on Heterocyclic Compounds. XXXIII. Synthesis of Furo [3, 2-c] pyrazole Derivatives. (1). Synthetic Investigation of Furo [3, 2-c] pyrazoles

YOSHINA, SHIGETAKA, TANAKA, AKIRA, KUO, SHENGCHU

Journal:

YAKUGAKU ZASSHI

Year:

1977

File:

PDF, 777 KB

1977

30

Studies on Heterocyclic Compounds. XXXV. Synthesis of Furo [3, 2-c] pyrazole Derivatives. (3). Synthesis of 5-Bromomethyl-1, 3-diphenylfuro [3, 2-c] pyrazole and Its Derivatives

YOSHINA, SHIGETAKA, KUO, SHENGCHU

Journal:

YAKUGAKU ZASSHI

Year:

1978

File:

PDF, 838 KB

1978

31

Studies on Heterocyclic Compounds. XXXVII. Synthesis of Furo [3, 2-c] pyrazole Derivatives. (5). Synthesis of α-Methyl-1-(p-substituted phenyl)-3-phenylfuro [3, 2-c] pyrazole-5-acetic Acids

YOSHINA, SHIGETAKA, KUO, SHENGCHU

Journal:

YAKUGAKU ZASSHI

Year:

1978

File:

PDF, 710 KB

1978

32

Studies on Beterocyclic Compounds. XXVI. Preparation of 5-(3-Pyridyl)-2-furaldehyde, 5-(3-Quinolyl)-2-furaldehyde and These Schiff's Bases

YOSHINA, SHIGETAKA, TANAKA, AKIRA, WU, CHIING-HSING, KUO, HSIEN-SAW

Journal:

YAKUGAKU ZASSHI

Year:

1975

File:

PDF, 740 KB

1975

33

Syntheses of Furan Derivatives. III

Takahashi, Torizo, Saikachi, Haruo, Yoshina, Shigetaka, Mizuno, Chotaro

Journal:

YAKUGAKU ZASSHI

Year:

1949

File:

PDF, 594 KB

1949

34

Synthetic Studies on Fungicidal Agents. II

Saikachi, Haruo, Yoshina, Shigetaka, Hisano, Takuzo

Journal:

YAKUGAKU ZASSHI

Year:

1957

Language:

english

File:

PDF, 731 KB

english, 1957

35

Synthetic Studies on Fungicidal Agents V

Saikachi, Haruo, Yoshina, Shigetaka

Journal:

YAKUGAKU ZASSHI

Year:

1958

File:

PDF, 726 KB

1958

36

Studies on Heterocyclic Compounds. IX. : Preparation of 2-Furyl Ketones

YOSHINA, SHIGETAKA, TANAKA, AKIRA, YAMAMOTO, KATSUMI

Journal:

YAKUGAKU ZASSHI

Year:

1968

File:

PDF, 552 KB

1968

37

Studies on Heterocyclic Compounds. XL : Synthesis of 5, 8-Quinolinequinone Derivatives. (1). Reactions of 6-Methyl-5, 8-quinolinequinone with Amines

KUO, HSIENSAW, YOSHINA, SHIGETAKA

Journal:

YAKUGAKU ZASSHI

Year:

1977

File:

PDF, 509 KB

1977

38

Studies on Heterocyclic Compounds. XLII. Reaction of 2-[α-Amino-β-(5-nitro-2-furyl)vinyl]furan and Preparation of 2-Furyl 5-Nitro-2-furfuryl Ketones

YOSHINA, SHIGETAKA, TANAKA, AKIRA, USUI, TOSHINAO

Journal:

YAKUGAKU ZASSHI

Year:

1978

File:

PDF, 784 KB

1978

39

Studies on Heterocyclic Compounds. XXI. Synthesis of Furo [2, 3-d] pyridazine Derivatives. (8). Synthesis of 4-Oxo-5, 7-disubstituted-4, 5-dihydrofuro [2, 3-d] pyridazines and Its Nitration

MAEBA, ISAMU, VALLAPHA, LAOHATHAI, YOSHINA, SHIGETAKA

Journal:

YAKUGAKU ZASSHI

Year:

1974

File:

PDF, 798 KB

1974

40

Studies on Heterocyclic Compounds. XX. Preparation of 1, 2-Dihydro-2-oxo-3-phenylcinchoninic Acids

YOSHINA, SHIGETAKA, TANAKA, AKIRA

Journal:

YAKUGAKU ZASSHI

Year:

1974

File:

PDF, 604 KB

1974

41

Synthetic Studies on Antituberculous Agents. I

Saikachi, Haruo, Hisano, Takuzo, Yoshina, Shigetaka

Journal:

YAKUGAKU ZASSHI

Year:

1954

File:

PDF, 683 KB

1954

42

Studies on Heterocyclic Compounds. XXIX. Synthesis of 2-[α-(N-Substituted carbamoyl)-β-(5-nitro-2-furyl) vinyl] furans and 2-[α-(N'-Substituted ureido)-β-(5-nitro-2-furyl) vinyl] furans

YOSHINA, SHIGETAKA, TANAKA, AKIRA, USUI, TOSHINAO

Journal:

YAKUGAKU ZASSHI

Year:

1977

File:

PDF, 662 KB

1977

43

Studies on Heterocyclic Compounds. XLIV. Bromination of 4-Methylfuro [2, 3-b] quinoline-Synthesis of Its Derivatives

YOSHINA, SHIGETAKA, YOGO, MOTOI

Journal:

YAKUGAKU ZASSHI

Year:

1978

File:

PDF, 528 KB

1978

44

Studies of Heterocyclic Compounds. II. : Synthesis of 2-Furylvinyl-benzenes and Studies of Polarography

YOSHINA, SHIGETAKA, TANAKA, AKIRA

Journal:

YAKUGAKU ZASSHI

Year:

1968

File:

PDF, 608 KB

1968

45

Studies on Heterocy1ic Compounds. XXV. Syntheses and Antimicrobial Activity of 3, 4-Diphenylfurfurylideneacetone and It's Derivatives (3)

YOSHINA, SHIGETAKA, YAMAMOTO, KATSUMI

Journal:

YAKUGAKU ZASSHI

Year:

1975

File:

PDF, 815 KB

1975

46

Studies on Heterocyclic Compounds. XXXVI. Synthesis of Furo [3, 2-c] pyrazole Derivatives. (4). Synthesis of 1, 3-Diphenylfuro [3, 2-c] pyrazole-5-carboxaldehyde and Its Derivatives

YOSHINA, SHIGETAKA, TANAKA, AKIRA, KUO, SHENGCHU

Journal:

YAKUGAKU ZASSHI

Year:

1978

File:

PDF, 879 KB

1978

47

Synthetic Studies on Fungicidal Agents. IV

Saikachi, Haruo, Yoshina, Shigetaka

Journal:

YAKUGAKU ZASSHI

Year:

1957

Language:

english

File:

PDF, 664 KB

english, 1957

48

Studies on Heterocyclic Compounds. XIII. : Synthesis of 5-Nitrophenyl Furans and the Geometricalisomer of 5-(4-Nitrophenyl)-2-furylvinyl Benzenes

YOSHINA, SHIGETAKA, TANAKA, AKIRA, YANG, GANG-NAN, HSIU, HSING-CHIEN

Journal:

YAKUGAKU ZASSHI

Year:

1970

File:

PDF, 590 KB

1970

49

Studies on Heterocyclic Compounds. I : Synthesis of 5-Nitro-2-furylvinylene Derivatives

YOSHINA, SHIGETAKA, TANAKA, AKIRA, YAMAMOTO, KATSUMI

Journal:

YAKUGAKU ZASSHI

Year:

1968

File:

PDF, 601 KB

1968

50

Studies of Heterocyclic Compounds.III. : Synthesis of Methyl 5-(2-Phenylvinyl)-2-furoate

YOSHINA, SHIGETAKA, TANAKA, AKIRA, IZUMI, KIHACHIRO

Journal:

YAKUGAKU ZASSHI

Year:

1968

File:

PDF, 528 KB

1968

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