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2-Carbethoxymethyl-4H-3,1-benzoxazin-4-one. 3. Condensation of o-phenylenediamive

✍ Scribed by I. V. Ukrainets; P. A. Bezuglyi; V. I. Treskach; A. V. Turov

Publisher
Springer US
Year
1992
Tongue
English
Weight
217 KB
Volume
28
Category
Article
ISSN
0009-3122

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## Abstract Substituted 2‐(benzylamino)‐2__H__‐1,4‐benzoxazin‐3(4__H__)‐ones are unstable under alkaline and acidic conditions, undergoing opening of the benzoxazinone ring. 2‐Bromo‐2__H__‐1,4‐benzoxazin‐3(4__H__)‐ones show similar degradation under alkaline conditions, while replacement of Br at C