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14N NMR studies on some N-sulphinylamines

✍ Scribed by W. Sicińska; L. Stefaniak; M. Witanowski; G. A. Webb

Publisher
John Wiley and Sons
Year
1981
Tongue
English
Weight
238 KB
Volume
15
Category
Article
ISSN
0749-1581

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✦ Synopsis

Abstract

High precision ^14^N nuclear screening data are presented for some alkyl‐ and aryl‐N‐sulphinylamines. For the alkyl compounds the β effect is seen to produce a decrease in screening and the opposite influence from the γ effect is also observed. An exception to the general tendency for the β effect is noted for (CH~3~)~3~CNSO. CNDO/S parameterized nitrogen screening calculations show that for this molecule the distorted cis form, with all of the methyl carbons rotated out of the CNSO plane, is the most probable structure. A similar effect is observed upon substituting the bulky tert‐butyl group in the 2 position of the aryl compounds studied. Nitrogen screening calculations again indicate the presence of the distorted cis form.

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