108-47-4, The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.108-47-4, Name is 2,4-Dimethylpyridine, molecular formula is C7H9N. In a Article, authors is Sato, Kiyoshi£¬once mentioned of 108-47-4
The synthesis of azoniadithia[6]helicenes
A new short-step synthesis of 8a-azonia[6]helicene (1) and the novel dithieno derivatives (2 and 3) is described. Double photocyclization of 2,8-distyrylquinolizinium salt (8) gave 1 in 35% yield. Similarly, 2,8-bis[2-(2-thienyl)vinyl]- and 2,8-bis[2-(3-thienyl)vinyl]-quinolizinium salts (9 and 10) afforded new azonia-[6]helicenes containing two thiophene rings at the ends of helix, that is 7a-azonia-3,12-dithia[6]helicene (2) and 7a-azonia-1,14-dithia[6]helicene (3), in 43 and 35% yields, respectively. The total assignment of their 1H- and 13C-nmr spectra was performed by utilizing two-dimensional and NOE nmr spectroscopic methods.
A reaction mechanism is the microscopic path by which reactants are transformed into products. Each step is an elementary reaction. In my other articles, you can also check out more blogs about 108-47-4
Reference£º
Chiral nitrogen ligands in late transition metal-catalysed asymmetric synthesis¡ªI. Addressing the problem of ligand lability in rhodium-catalysed hydrosilations,
Nitrogen-Containing Ligands for Asymmetric Homogeneous and Heterogeneous Catalysis