Structures of saturated azeto[1,2-a][3,1]- and azeto[2,1-b][1,3]benzoxazines prepared by addition of chloroacetyl chlorides to cyclohexane-condensed dihydrooxazines
Saturated cis and trans 3,1- and 1,3-benzoxazines (1-4) reacted with chloroacetyl chlorides to yield azeto[1,2-a][3,1]- and [2,1-b][1,3]benzoxazines (5, 6, 8, 9a,b). In one case, the addition took place with partial cis-->trans inversion of the starting compound. Adduct (7), containing two conden...
Elmentve itt :
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| Dokumentumtípus: | Cikk |
| Megjelent: |
1993
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| Sorozat: | HETEROCYCLES
36 No. 5 |
| Tárgyszavak: | |
| doi: | 10.3987/com-92-6256 |
| mtmt: | 28006 |
| Online Access: | http://publicatio.bibl.u-szeged.hu/32167 |
| Tartalmi kivonat: | Saturated cis and trans 3,1- and 1,3-benzoxazines (1-4) reacted with chloroacetyl chlorides to yield azeto[1,2-a][3,1]- and [2,1-b][1,3]benzoxazines (5, 6, 8, 9a,b). In one case, the addition took place with partial cis-->trans inversion of the starting compound. Adduct (7), containing two condensed 1,3-oxazine rings, was also isolated. The stereostructures of the new compounds were proved by H-1 and C-13-nmr spectroscopy, with NOE measurement data. The reaction mechanism is discussed. |
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| Terjedelem/Fizikai jellemzők: | 995-1003 |
| ISSN: | 0385-5414 |