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A General Synthetic Route to 6,6-Substituted-6 H -dibenzo[ b , d ]pyrans from Dibenzofuran

โœ Scribed by Wang, Bin; Li, Minxiong; Xu, Shansheng; Song, Haibin; Wang, Baiquan


Book ID
127070488
Publisher
American Chemical Society
Year
2006
Tongue
English
Weight
94 KB
Volume
71
Category
Article
ISSN
0022-3263

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A one-pot synthesis of 8-amino-1-methoxy
โœ J. A. Jilani ๐Ÿ“‚ Article ๐Ÿ“… 2007 ๐Ÿ› Versita ๐ŸŒ English โš– 123 KB

## Abstract 8-Amino-1-methoxy-6H-dibenzo[b,d]pyran-6-one was synthesized in a one-pot reaction of 2โ€ฒ,6โ€ฒ-dimethoxy-4-nitro-1,1โ€ฒ-biphenyl-2-carboxylic acid methyl ester using hydroiodic acid as a reagent to effect O-demethylation, lactonization, and nitro reduction to amine. This new reaction represe