Abstract
AbstractN,N′‐[Methyl‐14C]‐dimethylhydrazine dihydrochloride (2) having a specific activity of 112.5 mCi/mmol was prepared in two steps from ethyl hydrazinedicarboxylate ( ) in dry THF and 14C‐methyl iodide with a specific activity of approximately 58 mCi/mmol. Methylation of following treatment with KOEt and subsequent hydrolysis of the intermediate ethyl N,N′‐[methyl‐14C]‐ dimethylhydrazinedicarboxylate () in conc. HC1 afforded in 64% yield following purification by thin layer chromatography.
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