1994•Chemical and Pharmaceutical BulletinOpen access

Photo-Oxidation of 2-Methylamino-3-(1-piperidinylmethyl)-1,4-naphthoquinone.

Shunsaku Ohta, Yasunari HINATA, Ikuo Kawasaki, Masayuki Yamashita

Abstract

2-Methylamino-3-(1-piperidinylmethyl)-1, 4-naphthoquinone (7) was prepared via several steps from 2-methyl-1, 4-naphthoquinone (vitamin K3, 3). The quinone (7) was photochemically oxidized to 2-methylamino-3-(1-piperidinylcarbonyl)-1, 4-naphthoquinone (8) and/or 2-alkoxycarbonyl-3-methylamino-1, 4-naphthoquinone (9), depending on the solvent used.

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Key concepts: Chemistry, 1,4-Naphthoquinone, Naphthoquinone, Quinone, Solvent, Stereochemistry, Medicinal chemistry, Organic chemistry