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Synthesis 1992; 1992(10): 929-930
DOI: 10.1055/s-1992-26264
short paper
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A Simple Synthesis of 4,5-Dihydro-5H-1,3,4-benzoxadiazepin-5-ones

Kee-Jung Lee* , Seong Heon Kim, Sanghee Kim, Yang Rai Cho
  • *Division of Chemistry, Korea Institute of Science and Technology, P.O. Box 131 Cheongryang, Seoul, South Korea
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Publikationsdatum:
17. September 2002 (online)

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A simple method for the synthesis of 4,5-dihydro-5H-1,3, 4-benzoxa-diazepin-5-ones 4 based on the reaction of salicyclic hydrazide (1) with one carbon insertion units, such as carboxylic acid anhydrides, acid chlorides, and ortho esters is reported.