Importance of steric factors in the conversion of proaporphines into aporphines. Stereochemistry of the dienone–phenol and dienol–benzene rearrangements
作者:Hélène Guinaudeau、Varadaraj Elango、Maurice Shamma、Victor Fajardo
DOI:10.1039/c39820001122
日期:——
Proaporphines belongong to the C-6a-(R) configuration will undergo counter-clockwise rotation of the dienone system during their acid-catalysed rearrangement to aporphines, while proaporphines of the (S) configuration will suffer a corresponding clockwise rotation; the aryl ring thus migrates from the C-13 spiro-centre to that carbon of the dienone which is syn to 6a-H.
属于C-6a-(R)构型的Proophorphines在其酸催化的重排成卟啉的过程中,二烯酮系统会逆时针旋转,而(S)构型的Proprophiphines则会相应地顺时针旋转。因此所述芳环迁移从C-13螺中心到其在二烯酮的碳顺式到图6A-H。