| Title:  Aporeine CAS Registry Number:  2030-53-7 CAS Name:  (7aS)-6,7,7a,8-Tetrahydro-7-methyl-5H-benzo[g]-1,3-benzodioxolo[6,5,4-de]quinoline Additional Names:  aporheine;  1,2-methylenedioxyaporphine;  (+)-roemerine Molecular Formula:  C18H17NO2 Molecular Weight:  279.33 Percent Composition:  C 77.40%, H 6.13%, N 5.01%, O 11.46% Literature References:  From Papaver dubium L., Papaveraceae:  Pavesi, Gazz. Chim. Ital. 37 I, 629 (1907); 44 I, 398 (1914).  Structure and identity with (+)-roemerine:  Slavik, Collect. Czech. Chem. Commun. 28, 1738 (1963).  Synthesis of dl-roemerine:  Marion, Grassie, J. Am. Chem. Soc. 66, 1290 (1944). Properties:  Needles from ether + petroleum ether, mp 102°.  [a]D22 +80° (c = 0.50 in ethanol).  uv max:  262, 315 nm (log e 4.3, 3.7).  pK 6.1.  Sol in ether, methanol, ethanol, chloroform; slightly sol in petr ether.  Practically insol in water, alkali. Melting point:  mp 102° pKa:  pK 6.1 Optical Rotation:  [a]D22 +80° (c = 0.50 in ethanol) Absorption maximum:  uv max:  262, 315 nm (log e 4.3, 3.7)   Derivative Type:  Hydrochloride  Molecular Formula:  C18H17NO2.HCl Molecular Weight:  315.79 Percent Composition:  C 68.46%, H 5.75%, N 4.44%, O 10.13%, Cl 11.23% Properties:  Leaflets from ethanol or water, mp 266-267°.  Slightly sol in ethanol, water. Melting point:  mp 266-267°   Derivative Type:  Methiodide  Molecular Formula:  C18H17NO2.CH3I Molecular Weight:  421.27 Percent Composition:  C 54.17%, H 4.79%, N 3.32%, O 7.60%, I 30.12% Properties:  Crystals from boiling methanol, mp 232-233°. Melting point:  mp 232-233°   |