Apo-beta-erythroidine

Title: Apo-b-erythroidine
CAS Registry Number: 478-85-3
CAS Name: 4,5,7,8,9,12-Hexahydro-11H-pyrano[3,4-d]pyrrolo[3,2,1-jk][1]benzazepin-11-one
Molecular Formula: C15H15NO2
Molecular Weight: 241.29
Percent Composition: C 74.67%, H 6.27%, N 5.80%, O 13.26%
Literature References: A degradation product of b-erythroidine. Prepd by heating b-erythroidine to 120° with phosphoric or sulfuric acid: Sauvage et al., Science 109, 627 (1947); by reacting b-erythroidine with concd hydrobromic acid at 100°: Koniuszy, Folkers, J. Am. Chem. Soc. 73, 333 (1951). Synthesis and structure: Blake et al., J. Am. Chem. Soc. 87, 1397 (1965).
Properties: Crystals, mp 128-129°, also reported as mp 132-132.5°. uv max (ethanol): 345, 240 nm (e 3500, 24500).
Melting point: mp 128-129°; mp 132-132.5°
Absorption maximum: uv max (ethanol): 345, 240 nm (e 3500, 24500)
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