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Substituent-Induced chemical shifts of 2-phenylthiazolidines—1H NMR study

✍ Scribed by R. Umarani

Publisher
John Wiley and Sons
Year
1990
Tongue
English
Weight
223 KB
Volume
28
Category
Article
ISSN
0749-1581

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✦ Synopsis

Abstract

The ^1^H NMR 270‐MHz spectra of substituted 2‐phenylthiazolidines were recorded and the substituent‐induced chemical shifts (SCS) of the benzylic proton plotted against σ, the correlation coefficient being 0.801 and −ρ = 10.29 Hz. Halogens show deviations in the SCS plots. When the halogen‐substituted derivatives are omitted, the correlation with σ is greatly improved. The applicability of dual‐substituent correlations using Swin‐Lupton parameters (F and R) and Taft's σ~1~, σ~R~ parameters has been studied.

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