Norpseudoephedrine hydrochloride synthesis
- Product Name:Norpseudoephedrine hydrochloride
- CAS Number:2153-98-2
- Molecular formula:C9H14ClNO
- Molecular Weight:187.67
28143-91-1
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2153-98-2
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Yield:-
Steps:
Multi-step reaction with 6 steps
1: 70 percent / 160 °C / 0.5 Torr
2: 72 percent / pyridine / 1.) 0 deg, 4 h, 2.) room temperature, overnight
3: 90 percent / triethyl ammonium iodide / 1.5 h / Heating
4: 90 percent / H2, Et3N / 10percent Pd/C / ethyl acetate / 760 Torr
5: 87 percent / 0.5percent NaOMe / methanol / 24 h / Ambient temperature
6: 80 percent / 92percent aq. hydrazine / ethanol / 0.75 h / Heating
References:
Boerner, Armin;Krause, Hanswalter [Journal fur praktische Chemie (Leipzig 1954),1990,vol. 332,# 3,p. 307 - 312]
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