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1

ChemInform Abstract: Reductive Transformation of α,β-Epoxy Ketones and Other Compounds Promoted Through Photoinduced Electron Transfer Processes with 1,3-Dimethyl-2-phenylbenzimidazoline (DMPBI).

Eietsu Hasegawa, Akira Yoneoka, Kumiko Suzuki, Teru Kato, Takashi Kitazume, Kazuhiro Yanagi

Journal:

Year:

2000

File:

PDF, 39 KB

2000

2

ChemInform Abstract: 1,3-Dimethyl-2-phenylbenzimidazoline (DMPBI)—Acetic Acid: An Effective Reagent System for Photoinduced Reductive Transformation of α,β-Epoxy Ketones to β-Hydroxy Ketones.

Eietsu Hasegawa, Naoki Chiba, Aiko Nakajima, Kumiko Suzuki, Akira Yoneoka, Kazuki Iwaya

Journal:

Year:

2001

File:

PDF, 38 KB

2001

3

2-Hydroxyphenyl-1,3-dimethylbenzimidazolines. Formal Two Hydrogen Atom-Donors for Photoinduced Electron Transfer Reactions.

Eietsu Hasegawa, Naoki Chiba, Tomoya Takahashi, Shinya Takizawa, Takashi Kitayama, Toshio Suzuki

Journal:

Year:

2004

File:

PDF, 126 KB

2004

4

The first example of samarium diiodide-promoted intramolecular ketone–ester coupling of ketones tethering acyloxyalkyl side chains producing 2-hydroxy cyclic hemiacetals

Eietsu Hasegawa, Kentaro Okamoto, Naoko Tanikawa, Momoe Nakamura, Kazuki Iwaya, Takashi Hoshi, Toshio Suzuki

Journal:

Tetrahedron Letters

Year:

2006

Language:

english

File:

PDF, 124 KB

english, 2006

5

Reductive transformation of α,β-epoxy ketones and other compounds promoted through photoinduced electron transfer processes with 1,3-dimethyl-2-phenylbenzimidazoline (DMPBI)

Eietsu Hasegawa, Akira Yoneoka, Kumiko Suzuki, Teru Kato, Takashi Kitazume, Kazuhiro Yanagi

Journal:

Year:

1999

Language:

english

File:

PDF, 596 KB

english, 1999

6

Novel photoreaction of 4-tribromomethyl-4-methyl-2,5-cyclohexadienone with amine

Eietsu Hasegawa, Yukinobu Tamura, Takaaki Horaguchi, Koji Isogai, Toshio Suzuki

Journal:

Tetrahedron Letters

Year:

1994

Language:

english

File:

PDF, 291 KB

english, 1994

7

First example of samarium diiodide-promoted sequential cyclization and ring-expansion reactions of α-bromomethyl cyclic β-keto esters to homologated γ-keto esters

Eietsu Hasegawa, Takashi Kitazume, Kimiko Suzuki, Emi Tosaka

Journal:

Tetrahedron Letters

Year:

1998

Language:

english

File:

PDF, 239 KB

english, 1998

8

Furan derivatives. Part 10. Synthesis of cyclohepta[cd]benzofuran

Takaaki Horaguchi, Eietsu Hasegawa, Takahachi Shimizu, Kiyoshi Tanemura, Tsuneo Suzuki

Journal:

Journal of Heterocyclic Chemistry

Year:

1989

File:

PDF, 462 KB

1989

9

Furan derivatives. Part 12 . Synthesis of 2,5-dioxacyclohepta[jkl]-as-indacenes

Takaaki Horaguchi, Kazuhiro Miyazawa, Eietsu Hasegawa, Takahachi Shimizu, Tsuneo Suzuki, Kiyoshi Tanemura

Journal:

Journal of Heterocyclic Chemistry

Year:

1990

File:

PDF, 578 KB

1990

10

Furan derivatives. part 11 [1]. on substituent effects in the synthesis of 3,4,5,6-tetrahydrocyclohepta[cd]benzofurans

Takaaki Horaguchi, Hiroto Kobayashi, Kazuhiro Miyazawa, Eietsu Hasegawa, Takahachi Shimizu, Tsuneo Suzuki, Kiyoshi Tanemura

Journal:

Journal of Heterocyclic Chemistry

Year:

1990

File:

PDF, 478 KB

1990

11

Photocyclization reactions. Part 1. Synthesis of dihydrobenzofuranols using photocyclization of 2-alkoxybenzaldehydes, 2′-alkoxyacetophenones, 2-formylphenoxyacetic acids and 2-acetylphenoxyacetic acids

Takaaki Horaguchi, Chikara Tsukada, Eietsu Hasegawa, Takahachi Shimizu, Tsuneo Suzuki, Kiyoshi Tanemura

Journal:

Journal of Heterocyclic Chemistry

Year:

1991

File:

PDF, 846 KB

1991

12

Furan derivatives. Part 13. Synthesis of thiopyrano[4,3,2-cd]benzofuran

Takaaki Horaguchi, Kohei Hasegawa, Eietsu Hasegawa, Takahachi Shimizu, Kiyoshi Tanemura, Tsuneo Suzuki

Journal:

Journal of Heterocyclic Chemistry

Year:

1992

File:

PDF, 547 KB

1992

13

Photocyclization reactions. Part 2 Synthesis of dihydrobenzofuranols using photocyclization of ethyl 2-formylphenoxyacetates and ethyl 2-acetylphenoxyacetates

Takaaki Horaguchi, Chikara Tsukada, Eietsu Hasegawa, Takahachi Shimizu, Tsuneo Suzuki, Kiyoshi Tanemura

Journal:

Journal of Heterocyclic Chemistry

Year:

1991

File:

PDF, 626 KB

1991

14

Photoreactions of 4-(Tribromomethyl)-4-methyl-2,5-cyclohexadienone and Its Derivatives with Amines: Radical Cyclization and Ring Expansion Reactions Promoted through Photoinduced Electron Transfer Processes

Hasegawa, Eietsu, Tamura, Yukinobu, Suzuki, Kimiko, Yoneoka, Akira, Suzuki, Toshio

Journal:

Journal of Organic Chemistry

Year:

1999

Language:

english

File:

PDF, 124 KB

english, 1999

15

1,3-Dimethyl-2-phenylbenzimidazoline (DMPBI)-Acetic Acid: An Effective Reagent System for Photoinduced Reductive Transformation of α,β-Epoxy Ketones to β-Hydroxy Ketones

Hasegawa, Eietsu, Chiba, Naoki, Nakajima, Aiko, Suzuki, Kumiko, Yoneoka, Akira, Iwaya, Kazuki

Journal:

Year:

2004

Language:

english

File:

PDF, 75 KB

english, 2004

16

2-Hydroxyphenyl-1,3-dimethylbenzimidazolines. Formal Two Hydrogen Atom-donors for Photoinduced Electron Transfer Reactions

Hasegawa, Eietsu, Chiba, Naoki, Takahashi, Tomoya, Takizawa, Shinya, Kitayama, Takashi, Suzuki, Toshio

Journal:

Chemistry Letters

Year:

2004

Language:

english

File:

PDF, 65 KB

english, 2004

17

Critical Fusion Frequency of Flicker and the Electrical Excitability of the Retina

Suzuki, Eietsu, Ooba, Yutaka

Journal:

The Tohoku Journal of Experimental Medicine

Year:

1956

Language:

english

File:

PDF, 420 KB

english, 1956

18

Physiological Sensation Curves of an Equal Brightness Spectrum

Suzuki, Eietsu, Ooba, Yutaka

Journal:

The Tohoku Journal of Experimental Medicine

Year:

1956

Language:

english

File:

PDF, 325 KB

english, 1956

19

Retinal Responses to Intermittent Light of Subfusional Frequencies

Motokawa, Koiti, Suzuki, Eietsu, Ooba, Yutaka

Journal:

The Tohoku Journal of Experimental Medicine

Year:

1956

Language:

english

File:

PDF, 382 KB

english, 1956

20

The Relation between the Electrical Excitability and the Duration of Illumination at the Peripheral Retina

Journal:

The Tohoku Journal of Experimental Medicine

Year:

1955

Language:

english

File:

PDF, 400 KB

english, 1955

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