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1

Synthesis of gibberellin A1, A5, A55 and A60-. Metal-ammonia reduction of gibberellic acid and its derivative.

SHIMANO, Masanao, NAGAOKA, Hiroto, YAMADA, Yasuji

Journal:

CHEMICAL & PHARMACEUTICAL BULLETIN

Year:

1990

File:

PDF, 398 KB

1990

2

Samarium(II)-Induced Ring-Expansion Reaction of 1,2-Cyclobutanedicarboxylates to Produce Cyclopentanones.

Ikuo Shinohara, Hiroto Nagaoka

Journal:

Year:

2004

File:

PDF, 141 KB

2004

3

Samarium(II)-induced ring-expansion reaction of 1,2-cyclobutanedicarboxylates to produce cyclopentanones

Ikuo Shinohara, Hiroto Nagaoka

Journal:

Tetrahedron Letters

Year:

2004

Language:

english

File:

PDF, 261 KB

english, 2004

4

Total synthesis of (±)-gibberellic acid

Hiroto Nagaoka, Masanao Shimano, Yasuji Yamada

Journal:

Tetrahedron Letters

Year:

1989

Language:

english

File:

PDF, 309 KB

english, 1989

5

Radical Fixation of Functionalized Carbon Resources: α-sp 3 C−H Carbamoylation of Tertiary Amines with Aryl Isocyanates

Yoshimitsu, Takehiko, Matsuda, Kenichi, Nagaoka, Hiroto, Tsukamoto, Koji, Tanaka, Tetsuaki

Journal:

Organic Letters

Year:

2007

Language:

english

File:

PDF, 114 KB

english, 2007

6

Radical Fixation of Functionalized Carbon Resources: α-sp 3 C-H Carbamoylation of Tertiary Amines with Aryl Isocyanates

Yoshimitsu, Takehiko, Matsuda, Kenichi, Nagaoka, Hiroto, Tsukamoto, Koji, Tanaka, Tetsuaki

Journal:

Organic Letters

Year:

2008

File:

PDF, 5 KB

2008

7

Novel PDC catalyzed oxidative rearrangement of tertiary allylic alcohols to β-substituted enones

Matsunaga, Kazuma, Hirajima, Hironori, Kishida, Atsushi, Takatori, Kazuhiko, Nagaoka, Hiroto

Journal:

Tetrahedron Letters

Year:

2015

Language:

english

File:

PDF, 2.78 MB

english, 2015

8

Measurement of Edge Plasma Heat Flux in Heliotron J Using a Thermal Probe

MATSUURA, Hiroto, NAKANO, Ken, HOSAKA, Katsuyuki, NAGAOKA, Kenichi, MUTOH, Takashi, OKADA, Hiroyuki, KOBAYASHI, Shinji, MIZUUCHI, Tohru, KONDO, Katsumi, SANO, Fumimichi

Journal:

Plasma and Fusion Research

Year:

2010

Language:

english

File:

PDF, 742 KB

english, 2010

9

ChemInform Abstract: New Method for the Synthesis of α-Substituted Tetrahydrofuran-2-methanols Through Diastereoselective Addition of THF to Aldehydes Mediated by Et3B in the Presence of Air.

Takehiko Yoshimitsu, Maki Tsunoda, Hiroto Nagaoka

Journal:

Year:

1999

File:

PDF, 33 KB

1999

10

Hydroxyalkylation of α-C—H Bonds of Tetrahydrofuran with Aldehydes in the Presence of Triethylborane and tert-Butyl Hydroperoxide.

Takehiko Yoshimitsu, Yoshimasa Arano, Hiroto Nagaoka

Journal:

Year:

2003

File:

PDF, 18 KB

2003

11

Samarium(II) Iodide-Induced Tandem Reductive Coupling-Dieckmann Condensation Reaction: One-Step Synthesis of Bicyclic Oxacyclopentanecarboxylate from Bis-α,β-unsaturated Esters.

Ikuo Shinohara, Masayuki Okue, Yasuji Yamada, Hiroto Nagaoka

Journal:

Year:

2003

File:

PDF, 125 KB

2003

12

Total Synthesis of (+)-Muconin.

Takehiko Yoshimitsu, Toshiyuki Makino, Hiroto Nagaoka

Journal:

Year:

2004

File:

PDF, 74 KB

2004

13

Studies on the Total Synthesis of (-)-CP-263,114 (I).

Takehiko Yoshimitsu, Shuji Sasaki, Yoshimasa Arano, Hiroto Nagaoka

Journal:

Year:

2005

File:

PDF, 11 KB

2005

14

Radical α-C—H Hydroxyalkylation of Ethers and Acetal.

Takehiko Yoshimitsu, Yoshimasa Arano, Hiroto Nagaoka

Journal:

Year:

2005

File:

PDF, 37 KB

2005

15

Radical Hydroxyalkylation of C—H Bond Adjacent to Nitrogen of Tertiary Amides, Ureas, and Amines.

Takehiko Yoshimitsu, Yoshimasa Arano, Hiroto Nagaoka

Journal:

Year:

2005

File:

PDF, 37 KB

2005

16

Liquid chromatographic resolution of epimeric Diels-Alder adducts on silica gel using binary solvent systems

Shoji Hara, Toshikazu Ohkuma, Hiroto Nagaoka, Yasuji Yamada

Journal:

Journal of Separation Science

Year:

1980

Language:

english

File:

PDF, 143 KB

english, 1980

17

Pronounced Electronic Effect of Allylic Amino Groups on the π-Facial Stereoselectivity and Reactivity of the Iodoetherification of N-Substituted 3-Amino-4-penten-1-ols

Yoshinao Tamaru, Hiroto Harayama, Takashi Bando, Hirooki Nagaoka, Zen-Ichi Yoshida

Journal:

European Journal of Organic Chemistry

Year:

1996

Language:

english

File:

PDF, 1.40 MB

english, 1996

18

A synthesis of the aromatic segment of rifamycin s

Hiroto Nagaoka, Gerard Schmid, Hideo Iio, Yoshito Kishi

Journal:

Tetrahedron Letters

Year:

1981

Language:

english

File:

PDF, 223 KB

english, 1981

19

Total synthesis of (+)-halimedatrial: The absolute configuration of halimedatrial

Nagaoka Hiroto, Miyaoka Hiroaki, Yamada Yasuji

Journal:

Tetrahedron Letters

Year:

1990

Language:

english

File:

PDF, 254 KB

english, 1990

20

Synthetic studies on (±)-antheridic acid; construction of the antheridic acid skeleton

Masanao Shimano, Hiroto Nagaoka, Yasuji Yamada

Journal:

Tetrahedron Letters

Year:

1995

Language:

english

File:

PDF, 231 KB

english, 1995

21

Stereoselective total synthesis of (±)-antheridic acid

Masanao Shimano, Hiroto Nagaoka, Yasuji Yamada

Journal:

Tetrahedron Letters

Year:

1996

Language:

english

File:

PDF, 204 KB

english, 1996

22

Efficient synthesis of enantiomerically pure 5,5-Dimethyl-4-hydroxy-2-cyclopentenone

Hiroaki Miyaoka, Shoichi Sagawa, Hiroto Nagaoka, Yasuji Yamada

Journal:

Tetrahedron: Asymmetry

Year:

1995

Language:

english

File:

PDF, 461 KB

english, 1995

23

Samarium(II) iodide-induced cascade reaction for tricyclic γ-lactone synthesis from acyclic keto diesters

Atsushi Kishida, Hiroto Nagaoka

Journal:

Tetrahedron Letters

Year:

2008

Language:

english

File:

PDF, 420 KB

english, 2008

24

Total synthesis of upial, a marine sesquiterpene possessing bicyclo[3.3.1]nonane ring system

Hiroto Nagaoka, Kimiyuki Shibuya, Yasuji Yamada

Journal:

Year:

1994

Language:

english

File:

PDF, 2.13 MB

english, 1994

25

Further synthetic studies on rifamycin s

Hiroto Nagaoka, Yoshito Kishi

Journal:

Year:

1981

Language:

english

File:

PDF, 1.25 MB

english, 1981

26

New route to the synthesis of the illudane skeleton by Michael–Michael-elimination reaction

Kazuo Tokuzaki, Yasuhiro Kanemitu, Takehiko Yoshimitsu, Hiroto Nagaoka

Journal:

Tetrahedron Letters

Year:

2000

Language:

english

File:

PDF, 162 KB

english, 2000

27

Total synthesis of upial

Hiroto Nagaoka, Kimiyuki Shibuya, Yasuji Yamada

Journal:

Tetrahedron Letters

Year:

1993

Language:

english

File:

PDF, 301 KB

english, 1993

28

Synthesis of optically active bicyclo[2.2.2]octanes. Substitution effect of the cyclohexenone ring on the sequential Michael reaction

Hiroto Nagaoka, Kimiyuki Shibuya, Kaoru Kobayashi, Isao Miura, Michitaka Muramatsu, Yasuji Yamada

Journal:

Tetrahedron Letters

Year:

1993

Language:

english

File:

PDF, 309 KB

english, 1993

29

Aragusterol a: A potent antitumor marine steroid from the okinawan sponge of the genus, Xestospongia

Kazuo Iguchi, Michinari Fujita, Hiroto Nagaoka, Hidemichi Mitome, Yasuji Yamada

Journal:

Tetrahedron Letters

Year:

1993

Language:

english

File:

PDF, 307 KB

english, 1993

30

Facile synthesis of functionalized bicyclo[3.2.1]octane systems using the selective fragmentation reaction

Shoichi Sagawa, Hiroto Nagaoka, Yasuji Yamada

Journal:

Tetrahedron Letters

Year:

1994

Language:

english

File:

PDF, 179 KB

english, 1994

31

Total synthesis of marine diterpene fuscol

Makoto Iwashima, Hiroto Nagaoka, Kaoru Kobayashi, Yasuji Yamada

Journal:

Tetrahedron Letters

Year:

1992

Language:

english

File:

PDF, 163 KB

english, 1992

32

Total synthesis of (−)- and (+)-sanadaol: The absolute configuration of sanadaol and dictyodial

Hiroto Nagaoka, Kaoru Kobayashi, Yasuji Yamada

Journal:

Tetrahedron Letters

Year:

1988

Language:

english

File:

PDF, 144 KB

english, 1988

33

Determination of absolute configuration of chlorovulones by cd measurement and by enantioselective synthesis of (−)-chlorovulone II1

Hiroto Nagaoka, Kazuo Iguchi, Tohru Miyakoshi, Nobuko Yamada, Yasuji Yamada

Journal:

Tetrahedron Letters

Year:

1986

Language:

english

File:

PDF, 270 KB

english, 1986

34

Enantioselective synthesis of (R)- and (S)-4-[(methoxycarbonyl)-methyl]-2-azetidinones from D-glyceraldehyde acetonide

Hiroshi Matsunaga, Tomoko Sakamaki, Hiroto Nagaoka, Yasuji Yamada

Journal:

Tetrahedron Letters

Year:

1983

Language:

english

File:

PDF, 177 KB

english, 1983

35

Total synthesis of (±)-helminthosporal via fragmentation reaction

Hiroto Nagaoka, Atsuo Baba, Yasuji Yamada

Journal:

Tetrahedron Letters

Year:

1991

Language:

english

File:

PDF, 252 KB

english, 1991

36

Total synthesis of (±)-sanadaol

Hiroto Nagaoka, Kaoru Kobayashi, Toshiaki Matsui, Yasuji Yamada

Journal:

Tetrahedron Letters

Year:

1987

Language:

english

File:

PDF, 296 KB

english, 1987

37

Asymmetric sequential Michael reaction: Synthesis of optically active bicyclo[2.2.2]octane derivatives

Hiroto Nagaoka, Kaoru Kobayashi, Toshiaki Okamura, Yasuji Yamada

Journal:

Tetrahedron Letters

Year:

1987

Language:

english

File:

PDF, 243 KB

english, 1987

38

Synthesis of a halogenated clavulone analog

Hiroto Nagaoka, Tohru Miyakoshi, Jun-ichi Kasuga, Yasuji Yamada

Journal:

Tetrahedron Letters

Year:

1985

Language:

english

File:

PDF, 226 KB

english, 1985

39

Silver ion-promoted rearrangement of diels-alder adducts from 2-chloroacrylonitrile and 5-methoxy-4,7-dihydroindan

Yasuji Yamada, Masayuki Kimura, Hiroto Nagaoka, Kenjiro Ohnishi

Journal:

Tetrahedron Letters

Year:

1977

Language:

english

File:

PDF, 115 KB

english, 1977

40

Total synthesis of marine prostanoids clavulones

Hiroto Nagaoka, Tohru Miyakoshi, Yasuji Yamada

Journal:

Tetrahedron Letters

Year:

1984

Language:

english

File:

PDF, 202 KB

english, 1984

41

A new synthetic approach to the bicyclo[5.3.1]undecane ring system in taxanes

Hiroto Nagaoka, Kazunori Ohsawa, Takeshi Takata, Yasuji Yamada

Journal:

Tetrahedron Letters

Year:

1984

Language:

english

File:

PDF, 238 KB

english, 1984

42

A model study for the biomimetic-type synthesis of rifamycin S

Hideo Iio, Hiroto Nagaoka, Yoshito Kishi

Journal:

Tetrahedron Letters

Year:

1981

Language:

english

File:

PDF, 231 KB

english, 1981

43

Total synthesis of (+)-mayolide A: the absolute configuration of mayolide A

Hiroto Nagaoka, Makoto Iwashima, Haruyasu Abe, Yasuji Yamada

Journal:

Tetrahedron Letters

Year:

1989

Language:

english

File:

PDF, 257 KB

english, 1989

44

Synthesis of the CD ring system of paclitaxel by atom-transfer radical annulation reaction

Takehiko Yoshimitsu, Hideyuki Nakajima, Hiroto Nagaoka

Journal:

Tetrahedron Letters

Year:

2002

Language:

english

File:

PDF, 210 KB

english, 2002

45

Samarium(II) iodide-induced tandem reductive coupling-Dieckmann condensation reaction: one-step synthesis of bicyclic oxacyclopentanecarboxylate from bis-α,β-unsaturated esters

Ikuo Shinohara, Masayuki Okue, Yasuji Yamada, Hiroto Nagaoka

Journal:

Tetrahedron Letters

Year:

2003

Language:

english

File:

PDF, 141 KB

english, 2003

46

Synthesis of taxane AB ring by intramolecular nitrile oxide cyclization reaction

Yoshimasa Hirai, Hiroto Nagaoka

Journal:

Tetrahedron Letters

Year:

1997

Language:

english

File:

PDF, 136 KB

english, 1997

47

Efficient synthesis of the taxane C ring by fragmentation reaction of a bicyclo[2.2.2]octane derivative

Yoshimasa Hirai, Takuya Suga, Hiroto Nagaoka

Journal:

Tetrahedron Letters

Year:

1997

Language:

english

File:

PDF, 238 KB

english, 1997

48

A new synthetic route for construction of the core of zaragozic acids

Haruta Koshimizu, Tomo Baba, Takehiko Yoshimitsu, Hiroto Nagaoka

Journal:

Tetrahedron Letters

Year:

1999

Language:

english

File:

PDF, 225 KB

english, 1999

49

An approach to the synthesis of CP-263,114: complementary routes to the bicyclic ring system via two kinds of fragmentation reaction

Takehiko Yoshimitsu, Masahiro Yanagiya, Hiroto Nagaoka

Journal:

Tetrahedron Letters

Year:

1999

Language:

english

File:

PDF, 251 KB

english, 1999

50

Synthesis of (±)-aphanorphine: a new approach to tricyclic 3-benzazepine scaffold using two radical C–C bond-forming reactions

Takehiko Yoshimitsu, Chie Atsumi, Emiko Iimori, Hiroto Nagaoka, Tetsuaki Tanaka

Journal:

Tetrahedron Letters

Year:

2008

Language:

english

File:

PDF, 188 KB

english, 2008