ISSN:
0749-1581
Keywords:
1H NMR
;
13C NMR
;
N-Vinyl-2-arylpyrroles
;
N-Vinyl-2-heteroarylpyrroles
;
Chemistry
;
Analytical Chemistry and Spectroscopy
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
The introduction of a substituent in the 3-position of the pyrrole ring in N-vinyl-2-arylpyrroles and -2-heteroarylpyrroles results in an increase in the dihedral angles between the planes of the pyrrole ring and the aryl (or heteroaryl) residue, and a decrease in the dihedral angle between the planes of the pyrrole ring and the vinyl group. Introduction of the substituent in the 5-position of the pyrrole ring has the opposite effect on these angles. For N-vinyl-2-(2′-furyl)pyrrole, some spectral data suggest the formation of a C—H…O hydrogen bond between the α-hydrogen atom of the vinyl group and the oxygen atom of the furyl ring. This is in accord with the results of quantum chemical calculations.
Additional Material:
2 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/mrc.1260280705
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