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Carbon-13 n.m.r. and CNDO/S study of 1,2-indandione and heterocyclic analogues

✍ Scribed by Vinicio Galasso; Giorgio Pellizer; Giuseppe C. Pappalardo

Publisher: John Wiley and Sons
Year: 1977
Tongue: English
Weight: 300 KB
Volume: 9
Category: Article
ISSN: 0749-1581
DOI: 10.1002/mrc.1270090706

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✦ Synopsis

Abstract

^13^C n.m.r. spectra are reported for 1,2‐indandione, coumarandione and thionaphthenequinone in CDCl~3~ solution and for isatin in dimethyl sulphoxide solution. The chemical shifts are assigned and discussed in connection with the influence of the heteroatom on the dicarbonyl group and the aromatic ring. The ^13^C shieldings have also been calculated by means of Pople's perturbation theory using CNDO/S wave functions.

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