TY - JOUR SN - 0385-5414 VL - 36 AV - restricted Y1 - 1993/// TI - 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 IS - 5 SP - 995 A1 - Stájer Géza A1 - Szabó Angela E A1 - Fülöp Ferenc A1 - Bernáth Gábor A1 - Sohár Pál N2 - 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. UR - https://doi.org/10.3987/com-92-6256 JF - HETEROCYCLES EP - 1003 N1 - Saját lista sorszáma: 317 (S.P.) ID - publicatio32167 ER -