编辑“︁Salen”︁（章节）

==制备==
SalenH<sub>2</sub>可以在市场上购买到。它最早由Pfeiffer制得。<ref>{{cite journal | author = P. Pfeiffer, E. Breith, E. Lübbe, T. Tsumaki| title = "Tricyclische orthokondensierte Nebenvalenzringe | journal = [[Justus Liebig's Annalen der Chemie]] | volume = 503 | pages = 84–130 | year = 1933 | doi = 10.1002/jlac.19335030106}}</ref>它通常是在反应容器中制备，然后加入金属盐，但这种配体也可以很容易地由纯净的[[水杨醛]]和[[乙二胺]]发生[[缩合反应]]制得。<ref>{{cite journal | author = Harvey Diehl, Clifford C. Hach | journal = [[Inorg. Synth.]] | year =  1950 | volume = 3 | pages = 196–201 | doi = 10.1002/9780470132340.ch53 | title = Bis(N,N' - Disalicylalethylenediamine) -μ - Aquodicobalt(II) | series = Inorganic Syntheses | isbn = 9780470132340}}</ref>

:[[File:Preparation of salen.svg|450px]]