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Dive into the research topics where Yasushi Arakawa is active.

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Featured researches published by Yasushi Arakawa.


Tetrahedron Letters | 2001

Synthesis of novel (R)- and (S)-piperidazine-3-phosphonic acids and transformation into (R)- and (S)-pyrrolidine-2-phosphonic acids

Mamoru Kaname; Yasushi Arakawa; Shigeyuki Yoshifuji

Abstract The first synthesis of a pair of (R)- and (S)-piperidazine-3-phosphonic acids was performed via a one-pot process of hetero Diels–Alder reaction and Lewis acid-catalyzed phosphonylation. The absolute configuration of the target compounds was established by a novel transformation into known (R)- and (S)-pyrrolidine-2-phosphonic acids.


Tetrahedron Letters | 1999

A novel synthesis of cyclic α-hydrazinophosphonic acid

Mamoru Kaname; Kazuo Yoshinaga; Yasushi Arakawa; Shigeyuki Yoshifuji

Abstract The first synthesis of 6-membered cyclic α-hydrazinophosphonic acid has been achieved using hetero Diels-Alder adducts.


Tetrahedron | 2003

Stereospecific synthesis of new 2,3,4,5-piperidinetetracarboxylic acids and 2,3,5-piperidinetricarboxylic acids

Yasushi Arakawa; Tomoaki Murakami; Fumiko Ozawa; Yukimi Arakawa; Shigeyuki Yoshifuji

Abstract Diels–Alder adducts of 1,2-dihydropyridine with maleic and acrylic acid derivatives were stereospecifically converted by way of RuO 4 oxidation into new r -2, c -3, c -4, c -5-piperidinetetracarboxylic acid, r -2, t -3, t -4, c -5-piperidinetetracarboxylic acid, r -2, c -3, c -5-piperidinetricarboxylic acid, and r -2, t -3, c -5-piperidinetricarboxylic acid.


Chemical & Pharmaceutical Bulletin | 1991

Synthesis of (3S, 4S)-3,4-Dihydroxyprolines from L-Tartaric Acid

Yasushi Arakawa; Shigeyuki Yoshifuji


Chemical & Pharmaceutical Bulletin | 1998

Stereospecific Synthesis of Cyclic Hydrazoacetic Acids and meso-Diaminodicarboxylic Acids

Yasushi Arakawa; Takahiro Goto; Kazuya Kawase; Shigeyuki Yoshifuji


Chemical & Pharmaceutical Bulletin | 1985

Reaction of Carboxylic Acid Esters with p-Toluenesulfonic Acid

Yoshihiro Nitta; Yasushi Arakawa


Chemical & Pharmaceutical Bulletin | 2003

Stereospecific Synthesis of Azetidine-cis-2,3-dicarboxylic Acid

Yasushi Arakawa; Tomoaki Murakami; Yukimi Arakawa; Shigeyuki Yoshifuji


Chemical & Pharmaceutical Bulletin | 1997

Stereospecific Synthesis of cis-2, 4-Pyrrolidinedicarboxylic Acid and cis-2, 5-Piperidinedicarboxylic Acid

Yasushi Arakawa; Mika Yasuda; Masafumi Ohnishi; Shigeyuki Yoshifuji


Chemical & Pharmaceutical Bulletin | 1995

Synthesis of conformationally defined glutamic acid analogues from readily available Diels-Alder adducts

Mika Yasuda; Shigehisa Saito; Yasushi Arakawa; Shigeyuki Yoshifuji


Chemical & Pharmaceutical Bulletin | 1986

The Selective Dealkylation of Mixed Esters of Phosphoric Acid and Phenylphosphonic Acid Using Cation Exchange Resin

Yoshihiro Nitta; Yasushi Arakawa

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