So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic.Biancalana, Lorenzo; Bresciani, Giulio; Marchetti, Fabio; Pampaloni, Guido researched the compound: cis-4-Aminocyclohexane carboxylic acid( cas:3685-23-2 ).Product Details of 3685-23-2.They published the article 《Serendipitous Formation of a Zwitterionic Imidazolium Molecule from α-Diimine with Glyoxal as Unusual Cyclization Agent》 about this compound( cas:3685-23-2 ) in ChemistrySelect. Keywords: bis carboxycyclohexyl imidazole preparation; aminocyclohexane carboxylic acid glyoxal cyclization. We’ll tell you more about this compound (cas:3685-23-2).
The serendipitous discovery of the unprecedented route to a zwitterionic imidazolium mol. with the two nitrogen atoms substituted with 4-cyclohexanecarboxylic acid was reported. To build the five-membered ring, glyoxal played the double role of source for C2 and unusually C1 units, the latter via thermal decomposition afforded carbon monoxide as side-product. The product was characterized by elemental anal., multinuclear NMR, IR and ESI-MS spectroscopy.
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Reference:
Synthesis and Crystal Structure of a Chiral C3-Symmetric Oxygen Tripodal Ligand and Its Applications to Asymmetric Catalysis,
Chiral lanthanide(III) complexes of sulphur–nitrogen–oxygen ligand derived from aminothiourea and sodium D-camphor-β-sulfonate