A convenient synthesis of 2-formyl-1,4,5,8-tetramethoxynaphthalene

JOURNAL OF CHEMICAL RESEARCH（2007）

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Abstract

A convenient and concise synthesis of 1,4,5,8-tetramethoxynaphthalene can be achieved by methylation of 2,3-dihydronaphthazarin with dimethylsulfate in the presence of phase transfer catalytic in 90.3% yield, then formylation of 1,4,5,8-tetramethoxynaphthalene can afford 2-formyl-1,4,5,8-tetramethoxynaphthalene in 96.2% yield.

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Key words

phase transfer catalytic,2-formyl-1,4,5,8-tetramethoxy naphthalene,formylation

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