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A new method for the construction of pyrylium and pyridine rings fused to derivatives of furan and indole

✍ Scribed by G. N. Dorofeenko; L. V. Dulenko

Book ID
112325996
Publisher
Springer US
Year
1972
Tongue
English
Weight
305 KB
Volume
5
Category
Article
ISSN
0009-3122

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πŸ“œ SIMILAR VOLUMES

A new approach to fused furan ring syste
A new approach to fused furan ring systems and benzofurans: intramolecular cyclization reactions of unsaturated acyloxy sulfone derivatives
✍ Yuan Liu; Hollie K. Jacobs; Aravamudan S. Gopalan πŸ“‚ Article πŸ“… 2011 πŸ› Elsevier Science 🌐 French βš– 726 KB

Unsaturated acyloxy sulfones 3 undergo intramolecular cyclization upon deprotonation with LHMDS in THF. Dehydration and double bond isomerization of the products upon exposure to acid, gave the fused ring furans, 4, in good yields. This strategy could be readily adapted to prepare substituted benzof