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A new route to naphtho[2,3-b]furan-4,9-diones from thio-substituted 1,4-naphthoquinones

✍ Scribed by Kang, Wen-Bing; Sekiya, Takashi; Toru, Takeshi; Ueno, Yoshio


Book ID
121357555
Publisher
Royal Society of Chemistry
Year
1990
Weight
678 KB
Volume
3
Category
Article
ISSN
1472-7781

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## Abstract 4,9‐Dimethoxynaphtho[2,3‐__b__]furan 9 was obtained in 91% yield __via__ the reductive methylation of naphtho[2,3‐__b__]furan‐4,9‐dione 2. After treatment of 9 with butyllithium, the mixture was allowed to react with __N,N__‐dimethylacetamide, followed by oxidization with cerium(IV) dia