Irie,H. et al., Heterocycles, 1976, vol. 4, p. 1083 - 1087
作者:Irie,H. et al.
DOI:——
日期:——
The indenobenzazepine-spirobenzylisoquinoline rearrangement; stereocontrolled syntheses of (±)-raddeanine and (±)-yenhusomine
作者:Gábor Blaskó、Natesan Murugesan、Alan J. Freyer、Daniella J. Gula、Bilge Şener、Maurice Shamma
DOI:10.1016/s0040-4039(01)81847-5
日期:1981.1
Stereoselective rearrangement of indenobenzazepine cis ketols and with TPAA in pyridine produces spirobenzylisoquinolines and , respectively. The latter product is also obtained by rearrangement of trans ketol . The transformation of ketols and must, therefore, proceed through the intermediacy of aziridinium cation . A similar process obtains in the transformation of to . NaBH4 reduction of gives (±)-raddeanine