Synthesis of Novel Polycationic Quaternary Di‐ and Trispirocyclic Benzenes
作者:Jarosław Spychała
DOI:10.1080/00397910500278511
日期:2005.12
with a cyclic aminemorpholine, 1‐methylpiperazine, 1‐(2‐hydroxyethyl)piperazine, isonipecotamide, 4‐hydroxypiperidine, 4‐[3‐(4‐piperidyl)propyl]‐1‐piperidineethanol} gave a range of di‐ and trispirocyclic ammonium salts in satisfactory yields (22–62%). Presumably, the electrostatic and repulsion forces play an important role in their formation. The structure in solution and the protonation site have