1806-29-7. Let¡¯s face it, organic chemistry can seem difficult to learn. Especially from a beginner¡¯s point of view. Like 1806-29-7, Name is 2,2-Biphenol. In a document type is Article, introducing its new discovery.
Preparation and Intramolecular C-C Coupling Reaction for Bis-benzimidazolium Salt
Bis-benzimidazolium salt 1 was prepared via a series of reactions using 2,2?-diphenol as starting material. Compound 2 was afforded through the intramolecular C-C coupling reaction of 1 under the catalysis of Pd(OAc)2. The structure of 2 is characterized through X-ray diffraction analyses, 1H NMR and 13C NMR. In 2, two boat-like seven-membered rings are contained, where the C-C bond distance newly formed is 1.461(5) A, and it is between regular C-C single bond (1.54 A) and C C double bond (1.34 A). This shows that new C-C bond has partial double-bond character. In the crystal packing of 2, the 2D supramolecular layers are formed via C-H¡¤¡¤¡¤F hydrogen bond.
1806-29-7, I hope this article can help some friends in scientific research. I am very proud of our efforts over the past few months and hope to 1806-29-7, help many people in the next few years.
Reference£º
Chiral Catalysts,
Chiral catalysts – SlideShare