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Synthesis of acyloxybenzofuro[3,2-c]pyrylium salts

โœ Scribed by G. N. Dorofeenko; V. G. Korobkova; V. I. Volbushko


Book ID
112333022
Publisher
Springer US
Year
1977
Tongue
English
Weight
56 KB
Volume
13
Category
Article
ISSN
0009-3122

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Synthesis and reactions of benzo[b]furo[
โœ V. I. Dulenko; S. V. Tolkunov ๐Ÿ“‚ Article ๐Ÿ“… 1987 ๐Ÿ› Springer US ๐ŸŒ English โš– 306 KB

A method has been developed for the synthesis of 3-acetonyl-and 3-phenacylbenzo[b]furans by cyclization of l-arloxy-2,4-pentanedlones and l-phenyl-4-aryloxy-1,3-butanediones in polyphosphoric acid. Acylation of 3-acetonyl(phenyl-benzo-[b]furans with aliphatic acid anhydrides in the presence ofperchl