Die Chemie des<scp>Wieland-Gumlich</scp>-Aldehyds und seiner Derivate [1] 136. Mitteilung über Alkaloide [2]
作者:J. R. Hymon、H. Schmid、P. Karrer、A. Boller、H. Els、P. Fahrni、A. Fürst
DOI:10.1002/hlca.19690520617
日期:——
The course of the reactions involved in the process of degradation of strychnine (1) to Wieland-Gumlich aldehyde (WGA) (2), first performed by Wieland, Kaziro & Gumlich, has been elucidated. 23-Isonitrosostrychnine hydrochloride (9a) upon treatment with thionyl chloride undergoes a fragmentation (2nd order Beckmann rearrangement), thus furnishing N(a)-cyanoformyl-WGA hydrochloride (14a). On heating