Synthesis 2018; 50(18): 3738-3748
DOI: 10.1055/s-0037-1610415
paper
© Georg Thieme Verlag Stuttgart · New York

The Acid-Catalyzed 2-O-Alkylation of Substituted 2-Hydroxy-1,4-naphthoquinones by Alcohols: Versatile Preparative Synthesis of Spinochrome D and Its 6-Alkoxy Derivatives

Yuri E. Sabutskii
,
Vladimir A. Denisenko
,
Sergey G. Polonik*
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Publikationsverlauf

Received: 17. April 2018

Accepted after revision: 17. Mai 2018

Publikationsdatum:
12. Juli 2018 (online)


Abstract

A series of substituted 2-alkoxy-1,4-naphthoquinone derivatives were obtained by acid-catalyzed condensation of substituted 2-hydroxy-1,4-naphthoquinones with propan-1-ol, butan-1-ol, or pentan-1-ol in good yields. Based on this reaction a versatile preparative synthesis of spinochrome D was developed.

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