Organic magnetic resonance

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

P Sohár, L Simon, G Bernáth

文献索引：Sohar, P.; Simon, L.; Bernath, G. Organic Magnetic Resonance, 1984 , vol. 22, # 9 p. 597 - 602

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被引用次数: 3

摘要

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 1 H and 13 C 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- ...