Stereostructure of condensed‐skeleton cis‐ and trans‐dihydro‐1,3‐thiazines and 1‐thia‐3‐azaspiroalkenes

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Abstract

The stereostructures of some condensed‐skeleton cis‐ and trans‐dihydro‐1,3‐thiazines and 1‐thia‐2‐phenyl‐3‐azaspiro[4n + 1]alk‐2‐enes (n = 3–6) were established by 1H and 13C NMR spectroscopy. A comparative study indicated that the cis‐thiazines have greater conformational mobility than the corresponding oxazines, although the preferred conformer of the two types of cis compounds is the same, with the sulphur axial and the 4‐methylene group equatorial relative to the rings.

Original languageEnglish
Pages (from-to)597-602
Number of pages6
JournalMagnetic Resonance in Chemistry
Volume22
Issue number9
DOIs
Publication statusPublished - 1984

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Oxazines
Sulfur
Nuclear magnetic resonance spectroscopy

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)

Cite this

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title = "Stereostructure of condensed‐skeleton cis‐ and trans‐dihydro‐1,3‐thiazines and 1‐thia‐3‐azaspiroalkenes",
abstract = "The stereostructures of some condensed‐skeleton cis‐ and trans‐dihydro‐1,3‐thiazines and 1‐thia‐2‐phenyl‐3‐azaspiro[4n + 1]alk‐2‐enes (n = 3–6) were established by 1H and 13C NMR spectroscopy. A comparative study indicated that the cis‐thiazines have greater conformational mobility than the corresponding oxazines, although the preferred conformer of the two types of cis compounds is the same, with the sulphur axial and the 4‐methylene group equatorial relative to the rings.",
author = "P. Soh{\'a}r and L. Simon and G. Bern{\'a}th",
year = "1984",
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T1 - Stereostructure of condensed‐skeleton cis‐ and trans‐dihydro‐1,3‐thiazines and 1‐thia‐3‐azaspiroalkenes

AU - Sohár, P.

AU - Simon, L.

AU - Bernáth, G.

PY - 1984

Y1 - 1984

N2 - The stereostructures of some condensed‐skeleton cis‐ and trans‐dihydro‐1,3‐thiazines and 1‐thia‐2‐phenyl‐3‐azaspiro[4n + 1]alk‐2‐enes (n = 3–6) were established by 1H and 13C NMR spectroscopy. A comparative study indicated that the cis‐thiazines have greater conformational mobility than the corresponding oxazines, although the preferred conformer of the two types of cis compounds is the same, with the sulphur axial and the 4‐methylene group equatorial relative to the rings.

AB - The stereostructures of some condensed‐skeleton cis‐ and trans‐dihydro‐1,3‐thiazines and 1‐thia‐2‐phenyl‐3‐azaspiro[4n + 1]alk‐2‐enes (n = 3–6) were established by 1H and 13C NMR spectroscopy. A comparative study indicated that the cis‐thiazines have greater conformational mobility than the corresponding oxazines, although the preferred conformer of the two types of cis compounds is the same, with the sulphur axial and the 4‐methylene group equatorial relative to the rings.

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