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Mechanism of recyclization of furans to thiophenes and selenophenes under acid catalysis. 1. Kinetic studies of the reaction of 2,5-dialkylfurans with hydrogen sulfide in the presence of hydrochloric acid

โœ Scribed by S. P. Voronin; T. I. Gubina; I. A. Markushina; V. G. Kharchenko

Publisher
Springer US
Year
1989
Tongue
English
Weight
311 KB
Volume
25
Category
Article
ISSN
0009-3122

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Mechanism of recyclization of furans to
Mechanism of recyclization of furans to thiophenes and selenophenes under acid-catalysis conditions. 2. Kinetic investigations of the reaction of 2,5-dialkylfurans with hydrogen sulfide and hydrogen selenide in an anhydrous medium
โœ S. P. Voronin; T. I. Gubina; S. A. Trushin; I. A. Markushina; V. G. Kharchenko ๐Ÿ“‚ Article ๐Ÿ“… 1989 ๐Ÿ› Springer US ๐ŸŒ English โš– 395 KB

The effect of the concentration of the acidic component on the rates of recyclization of 2,5-dialkylfurans to thiophenes and selenophenes was studied. On the basis of the direct correlation of log k on (Ho)l and the isotope effect of the solvent it was established that the reaction proceeds via a me