397332-12-6

Upstream product

• 90-82-4 pseudoephedrine 
• 1850-89-1 (1S,2S)-N-amino-2-methylamino-1-phenyl-1-propanol 
• 1850-88-0 (1S,2S)-2-amino-N-methyl-N-nitroso-1-phenyl-1-propanol 

Relevant academic research and scientific papers

X-ray crystallographic and 13C nuclear magnetic resonance studies of 3,4,5,6-tetrahydro-2H-1,3,4-oxadiazin-2-ones derived from ephedrine and pseudoephedrine

3,4,5,6-Tetrahydro-2H-1,3,4-oxadiazin-2-ones derived from (1R,2S)-ephedrine and (1S,2S)-pseudoephedrine have been synthesized and their conformational properties have been examined. The ephedrine heterocycles 5-7a appear to favor one set of equilibrating