Premium
17 O NMR investigation of acetyl and formylthiophenes, furans and pyrroles
Author(s) -
Boykin David W.,
Rhodes R. Allen
Publication year - 1988
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.5570250251
Subject(s) - chemistry , chemical shift , steric effects , alkyl , medicinal chemistry , carbon 13 nmr , electronic effect , character (mathematics) , organic chemistry , stereochemistry , computational chemistry , geometry , mathematics
Abstract The 17 O nmr chemical shifts of 20 acetyl and formylthoiphenes, furans, and pyrroles are reported. The chemical shifts qualitatively correlate with the electronic character of the heterocyclic rings. The effect of steric factors are noted for the 17 O chemical shifts of alkyl substituted acetylthiophenes and for N ‐methylpyr‐roles.