Structural Formula Vector Image
Title: Dihydrothebaine
CAS Registry Number: 561-25-1
CAS Name: (5a)-6,7-Didehydro-4,5-epoxy-3,6-dimethoxy-17-methylmorphinan
Molecular Formula: C19H23NO3
Molecular Weight: 313.39
Percent Composition: C 72.82%, H 7.40%, N 4.47%, O 15.32%
Literature References: Prepd by reduction of thebaine: Small et al., J. Am. Chem. Soc. 58, 1457 (1936); K. W. Bentley, The Chemistry of the Morphine Alkaloids (Oxford, 1954) p 204.
Properties: Prisms from ethyl acetate, mp 162-163°. [a]D20 -267° (c = 1.02 in benzene). Sol in alcohol, benzene, ethyl acetate. Insol in water, alkalies.
Melting point: mp 162-163°
Optical Rotation: [a]D20 -267° (c = 1.02 in benzene)
Derivative Type: Methyl iodide
Molecular Formula: C20H23NO4.CH3I
Molecular Weight: 483.34
Percent Composition: C 52.18%, H 5.42%, N 2.90%, O 13.24%, I 26.26%
Properties: Rods from alc, mp 257°.
Melting point: mp 257°

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