72952-49-9Relevant academic research and scientific papers
New Synthesis of Diazepam
Gates, Marshall
, p. 1675 - 1681 (1980)
An efficient preparation of 7-chloro-1-methyl-3,4-dihydro-1H-1,4-benzodiazepine-2,5-dione from 5-chloro-N-methylisatoic anhydride and glycine has been devised, and from it, by the action of phenylmagnesium chloride on its N-acetyl-derivative followed by treatment with hydroxylamine and cleavage of the resulting desacetyl oxime with sodium bisulfite, diazepam has been synthesized.The overall yield is about 50percent from 5-chloroisatoic anhydride.
