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Structural assignments of 2‐aryl and 3‐arylbenzofurans by carbon‐13 nmr
Author(s) -
Kuo George Y.,
Ross Stephen T.
Publication year - 1978
Publication title -
journal of heterocyclic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.321
H-Index - 59
eISSN - 1943-5193
pISSN - 0022-152X
DOI - 10.1002/jhet.5570150848
Subject(s) - chemistry , chemical shift , aryl , signal (programming language) , carbon fibers , stereochemistry , organic chemistry , alkyl , materials science , composite number , computer science , composite material , programming language
The 1–3 C chemical shifts of 2‐aryl and 3‐arylbenzofurans are discussed. Pairs of isomers can be differentiated based on the chemical shifts of C‐2 in 3‐arylbenzofurans and C‐3 in 2‐arylbenzofurans. A signal near 100 ppm (101 ± 1.7) indicates a 2‐arylbenzofuran and a signal near (141 ± 1.3) indicates a 3‐arylbenzofuran.
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