Name is [1,1′-Binaphthalene]-2,2′-diamine, as a common heterocyclic compound, it belongs to chiral-catalyst compound, and cas is 4488-22-6, its synthesis route is as follows.,4488-22-6
(1) Synthesis of N,N’-di-p-toluenesulfonyl-1,1′-binaphthyl-2,2′-diamine Under nitrogen atmosphere, to a solution in which 1,1′-binaphthyl-2,2′-diamine (0.5 mmol) was dissolved in pyridine (1 mL) was added p-toluenesulfonyl chloride (1.1 mmol) at room temperature, and the mixture was reacted for 5 to 12 hours with stirring. After completion of the reaction, the resulting red suspension was diluted with ethyl acetate, and back-extracted with 1N hydrochloric acid to remove pyridine. The resulting organic layer was dried with sodium sulfate to remove the solvent, and the residue was purified by column chromatography to obtain an objective substance as a pale yellow to white solid in more than 95% yield.
With the complex challenges of chemical substances, we look forward to future research findings about [1,1′-Binaphthalene]-2,2′-diamine
Reference£º
Patent; Terada, Masahiro; Uraguchi, Daisuke; Sorimachi, Keiichi; Shimizu, Hideo; US2007/142639; (2007); A1;,
Chiral Catalysts
Chiral catalysts – SlideShare