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Carbon‐13 NMR spectra of some 4‐substituted phenacyl chlorides and iodides
Author(s) -
Olivato Paulo Roberto,
Guerrero Sandra Alvarez,
Rittner Roberto
Publication year - 1987
Publication title -
magnetic resonance in chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.483
H-Index - 72
eISSN - 1097-458X
pISSN - 0749-1581
DOI - 10.1002/mrc.1260250218
Subject(s) - chemistry , chemical shift , methylene , phenacyl , substituent , carbon 13 nmr , ring (chemistry) , nmr spectra database , medicinal chemistry , spectral line , carbon fibers , organic chemistry , physics , astronomy , materials science , composite number , composite material
Abstract The 13 NMR singles for some 4‐substituted phenacylchlorides and iodides were assigned. The carbonyl carbons exhibit upfield shifts compared with those of the corresponding 4‐substituted acetophenones; in the chlorinated derivatives a downfield shift is observed for the α‐methylene carbons, while a reverse effect occurs in the iodinated compounds. The chemical shifts of the aromatic ring carbons are in close agreement with those calculated using substituent chemical shifts.