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1 H‐NMR, Ultraviolet and infrared spectra of some ( Z )‐α‐(phenyl)‐β‐(2‐furyl), ‐(2‐pyrrolyl) and ‐( N ‐methyl‐2‐pyrrolyl)acrylonitriles
Author(s) -
Alberghina Gaetano,
Amato Maria Emanuela,
Bottino Francesco Agatino,
Corsaro Antonino,
Fisichella Salvatore
Publication year - 1986
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.5570230629
Subject(s) - chemistry , infrared , ring (chemistry) , chromophore , ultraviolet , spectral line , infrared spectroscopy , absorption (acoustics) , absorption spectroscopy , nmr spectra database , proton nmr , carbon 13 nmr , stereochemistry , photochemistry , organic chemistry , optics , physics , astronomy
Abstract The 1 H‐nmr data of some ( Z )‐α‐( p ‐substituted‐phenyl)‐β‐(2‐furyl), ‐(2‐pyrrolyl), and ‐( N ‐methyl‐2‐pyrrolyl)‐acrylonitriles have been investigated to indicate the preferred conformation and to establish the conformational preferences of the β‐heterocyclic ring. The ultraviolet spectra have been discussed in order to obtain information about the chromophores responsible for the absorption. The infrared spectra have been analyzed for the identification of the main absorption frequencies of cyano and ethylenic groups and to assign the characteristic absorption bands to specific normal vibrations of the heteroaromatic nuclei.