121314-72-5

Upstream product

• 161146-88-9 [1,1′-binaphthalene]-2,2′-dicarboxaldehyde 
• 35132-20-8 (R,R)-1,2-diphenylethylenediamine 

Downstream Products

• 121314-81-6 (1S,2R)-2-{[1-(2'-{[(Z)-(1R,2S)-2-Hydroxy-1-methyl-2-phenyl-ethylimino]-methyl}-[1,1']binaphthalenyl-2-yl)-meth-(Z)-ylidene]-amino}-1-phenyl-propan-1-ol 
• 746-46-3 (R)-1,1'-binaphthyl-2,2'-dicarboxylic acid 
• 121350-54-7 (1R,2S)-2-{[1-(2'-{[(Z)-(1S,2R)-2-Hydroxy-1-methyl-2-phenyl-ethylimino]-methyl}-[1,1']binaphthalenyl-2-yl)-meth-(Z)-ylidene]-amino}-1-phenyl-propan-1-ol 

Relevant academic research and scientific papers

Mild synthesis of enantiomerically pure imidazo-[1,2-a]azepines mediated by Yb(OTf)3

The reaction of various chiral 2,2′-diaryldialdehydes with achiral and chiral 1,2-diamines in the presence of Lewis acids to give imidazo[1,2-a]azepines was investigated. Best results were achieved with Yb(OTf)3; the reaction outcome is strongly dependent upon the geometric features of both reactants. Kinetic resolution of rac-2,2′-dinaphthyldialdehyde with (R,R)-1,2-diphenyl-1,2-diamminoethane (up to 92% e.e.) was achieved.