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
SYNTHESIS-STUTTGART(2018)
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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Key words
2-hydroxy-1, 4-naphthoquinones,acid catalysis,2-O-alkylation,n-alkanol,spinochrome D
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