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Transmission of substituent effects in heterocyclic systems by carbon-13 nuclear magnetic resonance. Benzothiazoles

✍ Scribed by Sawhney, Shanti N.; Boykin, David Withers

Book ID: 120290010
Publisher: American Chemical Society
Year: 1979
Tongue: English
Weight: 867 KB
Volume: 44
Category: Article
ISSN: 0022-3263
DOI: 10.1021/jo01321a024

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## Abstract The substituent influence on the ^1^H and ^13^C NMR chemical shifts in 2‐substituted benzimidazoles and their anions and cations has been investigated. The transmission of the electronic effects of substituents from C‐2 to C‐5 (6) is approximately 20% less effective than that in the opp