Stereostructure of condensed-skeletoncis- andtrans-dihydro-1,3-thiazines and 1-thia-3-azaspiroalkenes
作者:P. Sohár、L. Simon、G. Bernáth
DOI:10.1002/mrc.1270220916
日期:1984.9
AbstractThe 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.
SIMON, L.;TALPAS, G. S.;FUELOEP, F.;BERNATH, G.;SOHAR, P., ACTA CHIM. HUNG., 1985, 118, N 1, 37-42
作者:SIMON, L.、TALPAS, G. S.、FUELOEP, F.、BERNATH, G.、SOHAR, P.
DOI:——
日期:——
Synthesis and steric structure of alicycle-fused 1,3-thiazine-β-lactams
作者:Pál Sohár、János Szabó、Lajos Simon、Gizella S. Talpas、Erzsébet Szücs、Gábor Bernáth
DOI:10.1002/mrc.1260290710
日期:1991.7
2 + 2-Cycloaddition reactions of cis- and trans-cyclopenta-, -cyclohexa- and -cyclohepta- and trans-cycloocta [e]-2-phenyl-4H-1,3-thiazines gave new types of hydrated tricyclic 1,3-thiazino-β-lactam derivatives having the 2-phenyl substituent and H-9 in cis positions. The configurations and conformations of the new compounds were determined by 1H and 13C NMR spectroscopy, including double resonance, DNOE and 2D HSC measurements.