Fragmentierung von ?-Aminoketoximen. III. Teil Mono- und bicyclische Verbindungen. Fragmentierungs-Reaktionen. 6 Mitteilung
作者:C. A. Grob、H. P. Fischer、H. Link、E. Renk
DOI:10.1002/hlca.19630460415
日期:——
observable reaction of the p-toluene sulfonates of six mono- and bicyclic α-aminoketoximes (2d–7d) is fragmentation to carbimonium salts (8–13). The fragmentation product of 1-keto-octahydropyrrocolineoxime-tosylate (6d), viz. the carbimonium salt (12), undergoes spontaneous ring closure to 2-oxo-1-azaquinolizidine (26). The intermediate (12) in this fragmentation-recombination reaction can be intercepted
六个单环和双环α-氨基酮肟(2d-7d)的对甲苯磺酸盐的唯一可观察到的反应是裂解成卡比莫铵盐(8-13)。1-酮-八氢吡咯啉肟-甲苯磺酸酯的片段化产物(6d),即。卡比莫铵盐(12)自发闭环生成2-oxo-1-azaquinolizidine(26)。该断裂-重组反应中的中间体(12)可被氰离子截留,生成β(2-氰基-哌啶-1-基)-丙腈(29a)。