Preparation of 2,3-disubstituted-4,5-dihydrothiophenes and thiophenes using the intramolecular non-classical Wittig reaction of thiolcarboxylates
- 1 January 1994
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Perkin Transactions 1
- No. 17,p. 2403-2405
- https://doi.org/10.1039/p19940002403
Abstract
2-Ethoxycarbonylcyclopropyl(triphenyl)phosphonium fluoroborate 1 reacts with alkali-metal thiolates to give 2,3-disubstituted 4, 5-dihydrothiophenes 3 which can be aromatised to the corresponding thiophenes 5.Keywords
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