Synthesis of 1H-2-Benzopyran-5,8-dione Skeleton through a Cascade Reaction between Benzoquinone and β-Ketoester

Masataka Nakahara, Hiroyoshi Ohtsu, Masaki Kawano, Kengo Hanaya, Takeshi Sugai, Shuhei Higashibayashi

研究成果: Article査読

抄録

The 1H-2-benzopyran-5,8-dione structure was synthesized by a cascade reaction through Michael addition, elimination of HBr, and O-alkylation between a dibromobenzoquinone derivative and β-ketoesters under basic conditions. The reaction using potassium carbonate and 18-crown-6 in THF was the best condition, giving 1H-2-benzopyran-5,8-dione derivatives in good yields. The UV-vis absorption spectrum and cyclic voltammogram of the synthesized 1H-2-benzopyran-5,8-dione derivative were measured, clarifying the photophysical and redox properties.

本文言語English
ページ(範囲)356-359
ページ数4
ジャーナルChemistry Letters
51
4
DOI
出版ステータスPublished - 2022 4月

ASJC Scopus subject areas

  • 化学一般

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