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Dive into the research topics where Hajime Yoshikoshi is active.

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Featured researches published by Hajime Yoshikoshi.


Heterocycles | 1990

Synthesis of (+)-trans-Whisky Lactone, (+)-trans-Cognac Lactone and (+)-Eldanolide

Takashi Ehata; Takashi Ebata; Katsuya Matsumoto; Hajime Yoshikoshi; Koshi Koseki; Hiroshi Kawakami; Hajime Matsushita

A new and useful synthesis of (+)-trans-whisky lactone (3), (+)-trans-cognac lactone (4) and (+)-eldanolide (5) starting from levoglucosenone (1) is described


Heterocycles | 1993

Synthesis of (+)-trans-whisky lactone, (-)-cis-whisky lactone, (+)-cognac lactone and (+)-eldanolide

Takashi Ehata; Takashi Ebata; Katsuya Matsumoto; Hajime Yoshikoshi; Koshi Koseki; Hiroshi Kawakami; Koji Okano; Hajime Matsushita

(+)-trans-Whisky lactone (5) and (-)-cis-whisky lactone (8), (+)-cognac lactone (9) and (+)-eldanolide (10) were synthesized starting from levoglucosenone (1) in optically pure states


Chemistry Letters | 1989

The synthesis of 2'-deoxyadenosine via stereospecific coupling reaction

Hiroshi Kawakami; Hajime Matsushita; Yoshitake Naoi; Kazuo Itoh; Hajime Yoshikoshi


Archive | 1991

Process for producing cis-whiskey-lactone

Hajime Yoshikoshi; Masakazu Okaniwa


Chemistry Letters | 1989

Stereoselectivities in the Coupling Reactions between 2-Deoxyribose Derivative and Silylated Adenine

Hiroshi Kawakami; Hajime Matsushita; Makoto Shibagaki; Yoshitake Naoi; Kazuo Itoh; Hajime Yoshikoshi


Archive | 1988

Production of 2'-deoxy-beta-adenosine

Kazuo Ito; Hiroshi Kawakami; Hajime Matsushita; Yoshitaka Naoi; Hajime Yoshikoshi


Archive | 1991

Method of producing cis-whiskey lactone

Takashi Ebata; Katsuya Matsumoto; Koshi Koseki; Hiroshi Kawakami; Hajime Matsushita; Hajime Yoshikoshi; Masakazu Okaniwa


ChemInform | 2010

Synthesis of (+)‐trans‐Whisky Lactone (I), (‐)‐cis‐Whisky Lactone (II), (+)‐Cognac Lactone (III), and (+)‐Eldanolide (IV).

Takashi Ebata; Katsuya Matsumoto; Hajime Yoshikoshi; Koshi Koseki; Hiroshi Kawakami; Koji Okano; Hajime Matsushita


Archive | 1991

Verfahren zur herstellung von cis-whiskey-lacton. A process for producing cis-whiskey lactone.

Takashi Ebata; Katsuya Matsumoto; Koshi Koseki; Hiroshi Kawakami; Hajime Matsushita; Hajime Yoshikoshi; Masakazu Okaniwa


Archive | 1991

Procede pour produire une cis-lactone de whisky

Takashi Ebata; Katsuya Matsumoto; Koshi Koseki; Hiroshi Kawakami; Hajime Matsushita; Hajime Yoshikoshi; Masakazu Okaniwa

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