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On the NMR spectrum of 1,3‐oxathiane‐3‐oxide: A contrast between the conformational preference of the sulphinyl oxygen in 1,3‐oxathiane‐3‐oxide and in 1,3‐dithiane‐1‐oxides
Author(s) -
Bergesen Knut,
Cook Michael J.,
Tonge Alan P.
Publication year - 1974
Publication title -
organic magnetic resonance
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.483
H-Index - 72
eISSN - 1097-458X
pISSN - 0030-4921
DOI - 10.1002/mrc.1270060216
Subject(s) - dithiane , chemistry , oxide , preference , oxygen , sulfoxide , computational chemistry , stereochemistry , organic chemistry , economics , microeconomics
The 100 MHz spectrum of 1,3‐oxathiane‐3‐oxide is reported. Parameters obtained from first order analyses are interpreted in terms of an absence of a conformational preference of the SO bond at 38°C, but an axial preference at low temperatures. The behaviour contrasts with that found previously in the 1,3‐dithiane‐1‐oxide series.