CAS 492-41-1
:L-(-)-Ephedrine
Descripción:
This alkaloid was first isolated by Kanao from the Chinese drug 'Ma-Huang'
(Ephedra sinica Stapf.) and later by Wolfes from E. helvetica C. A. Meyer and E.
distachya Linn. It forms a crystalline mass and has [α]
20
D
- 14.56° (EtOH).
Several crystalline salts and derivatives are known: the hydrochloride has m.p.
171-2°C; [α]
20
D
- 33.27° (H20); the sulphate dihydrate, m.p. 285-6°C (dry,
dec.); [α]
28
D
- 31.99° (H20); the aurichloride, m.p. 188°C; platinichloride, m.p.
221°C (dec.); (-)-hydrogen tartrate, m.p. about 160° after sintering at 130°C;
oxalate, m.p. 245°C (dec.) and the p-nitrobenzoyl derivative, m.p. 175-6°C;
[α]
28
D
- 49.58° (CHCI3).
The (+)-form has m.p. 52°C; [α]
27
D
+ 14.76° (EtOH), yielding a hydro_x0002_chloride, m.p. 171-2°C; [α]
27
D
+ 33.4° (EtOH); sulphate dihydrate, m.p. 285-
6°C (dry, dec.); [α]
27
D
+ 31.51 0 C (H20); aurichloride, m.p. 188°C (dec.) and
platinichloride, m.p. 221.5°C (dec.). The (±)-form crystallizes as colourless
plates from Et20, m.p. 104-5°C and also furnishes a series of crystalline salts
and derivatives.
Fórmula:C10H15NO
Sinónimos:- alpha-(1-aminoethyl)-,(r-(r*,s*))-benzenemethano
- (1R,2S)-(-)-PHENYLPROPANOLAMINE
- (1R,2S)-(-)-2-AMINO-1-PHENYL-1-PROPANOL
- AURORA KA-7791
- (1R,2S)-2-AMINO-1-PHENYL-1-PROPANOL
- 1-Propanol, 2-amino-1-phenyl-
- (-)-1R,2S-NOREPHEDRINE
- (-)-benzylalcoho
- (1R,2S)-2-AMINO-1-PHENYLPROPAN-1-OL
- (-)-Norephedrine
- DL-NOREPHEDRINE
- (-)-norephedrin
- L-(-)-NOREPHEDRINE
- alpha-(1-aminoethyl)-,[theta-(theta,s)]-benzenemethano
- Benzenemethanol, alpha-(1-aminoethyl)-, [R-(R*,S*)]-
- NOREPHEDRINE, (-)-1R,2S-
- 2-AMINO-1-PHENYL-1-PROPANOL
- (1R,2S)-(-)-NOREPHEDRINE
- (1R,2S)-(-)-NOREPHEDRINE, L-(-)-NOREPHEDRINE
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