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N-Nitrosodecahydroquinolines 3-Nitrogen-15 Nuclear Magnetic Resonance Spectra

✍ Scribed by Friedrich W. Vierhapper; Puliyur R. Srinivasan

Publisher
John Wiley and Sons
Year
1982
Tongue
English
Weight
559 KB
Volume
19
Category
Article
ISSN
0749-1581

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✦ Synopsis

Abstract

^15^N Chemical shifts of N‐nitroso‐trans‐decahydroquinoline, N‐nitroso‐cis‐decahydroquinoline, of 12 methyl‐or t‐butyl‐substituted N‐nitrosodecahydroquinolines and of N‐nitroso‐trans‐syn‐trans‐perhydroacridine are reported. Shift effects for N‐nitrosation were calculated by comparison with the parent amines. Shift effects for ring substitution, obtained by comparison with the data of N‐nitrosopiperidine, are of similar direction and magnitude as in the parent amines for the ring nitrogens (N‐1). Methyl substitution nearly always causes deshielding for the nitroso nitrogens (N‐2), with a very large deshielding if the planarity of the (C‐α)~2~NNO region is disturbed.

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