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Synthesis of substituted 6h-dibenzo[b,d]pyran-6-one

โœ Scribed by G. N. Migachev; A. M. Andrievskii; L. V. Efimova


Book ID
112327527
Publisher
Springer US
Year
1977
Tongue
English
Weight
136 KB
Volume
13
Category
Article
ISSN
0009-3122

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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