A new synthetic route to 2-substituted n
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Jyunichi Koyanagi; Katsumi Yamamoto; Kouji Nakayama; Akira Tanaka
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Article
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1997
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Journal of Heterocyclic Chemistry
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English
β 476 KB
## Abstract 4,9βDimethoxynaphtho[2,3β__b__]furan 9 was obtained in 91% yield __via__ the reductive methylation of naphtho[2,3β__b__]furanβ4,9βdione 2. After treatment of 9 with butyllithium, the mixture was allowed to react with __N,N__βdimethylacetamide, followed by oxidization with cerium(IV) dia