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13C NMR spectra of thiophenes. III—Bromothiophenes

✍ Scribed by Tyo Sone; Kunimi Fujieda; Kensuke Takahashi

Publisher: John Wiley and Sons
Year: 1975
Tongue: English
Weight: 266 KB
Volume: 7
Category: Article
ISSN: 0749-1581
DOI: 10.1002/mrc.1270071111

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✦ Synopsis

Abstract

The ^13^C NMR spectra of all bromo substituted thiophenes have been obtained at 15·085 MHz. ^13^C signal assignments for monobromothiophenes have been confirmed by comparison with the spectra of their partially deuteriated derivatives; a revision is made for the assignment in 3‐bromothiophene. The substituent effect of bromine is generally additive for the ^13^C chemical shifts. The substituent effect on various types of ^13^C, ^1^H coupling constants is also obtained and discussed.

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