Thieno[2,3-b][1]benzothiophen and thieno[3,2-b][1]benzothiophen. Part III. Substitution reactions of derivatives with substituents in the thiophen ring
β Scribed by Chapman, N. B.; Hughes, C. G.; Scrowston, R. M.
- Book ID
- 111957308
- Publisher
- The Royal Society of Chemistry
- Year
- 1971
- Tongue
- English
- Weight
- 917 KB
- Volume
- 0
- Category
- Article
- ISSN
- 0022-4952
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π SIMILAR VOLUMES
## Abstract Substituent chemical shifts for the title systems have been determined at infinite dilution in CDCl~3~ from a study of 40 derivatives. An excellent correlation is found between the __ortho__ effect of substituents in the thiophene ring and the corresponding effects in thiophene itself,
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