Tetrahedron p. 9205 - 9220 (1999)
Update date:2022-08-04
Topics:
Woydowski, Karsten
Liebscher, Juergen
Enantiopure diethyl oxirane dicarboxylate 1 reacts with o-aminophenols 2 either to 1,4-benzoxazin-2-ones 5 or to the 1,5-benzoxazepin-2-one 4 while a condensed 1,4-oxazin-3-one 6 was obtained with 2-amino-3-hydroxypyridine. On the other hand optical activ
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(1999)
