Thiophen derivatives. Part XX. Further studies on the Elbs reaction of aroylbenzo[b]thiophens
- 1 January 1971
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society C: Organic
- p. 431-434
- https://doi.org/10.1039/j39710000431
Abstract
3-(4-Methoxy-2-methylbenzoyl)- and 3-(4-methoxy-2,5-dimethylbenzoyl)-benzo[b]thiophen underwent the Elbs reaction with rearrangment to give derivatives of benzo[b]naphtho[2,1-d]thiophen, whereas 2-(4-methoxy-2,5-dimethylbenzoyl)benzo[b]thiophen gave the normal cyclisation product, i.e. a benzo[b]naphtho[2,3-d]thiophen.Keywords
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