Abstract
AbstractThermal analysis of (‐)‐corycavine in the crystalline state, with the aid of its IR spectrum, indicated that the transition of the solid state I into solid state II is accompanied by the melting of (‐)‐corycavine (148‐149°C), and after melting the molecule rearranges to the racemic form. The crystal structure of (‐)‐corycavine has been determined by X‐ray analysis. On the basis of the crystallographic results of (‐)‐corycavine, as well as its racemate, the mechanism of racemization at the asymmetric carbon C(13) in the solid state is discussed.
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