Zoltewicz, John A.; Cross, Robert E. published an article in 1974, the title of the article was Two-step conversion of pyridines into their ylides. Compensatory effects of substituents on reactivity.Recommanded Product: 636-73-7 And the article contains the following content:
Pseudo-1st-order rate constants were determined for the H-D exchange at the C-2 and C-6 positions of I (R = H, Cl, CO2-, SO3-, MeO, ND2) in neutral D2O at 197.5 – 217.9.degree.; the reaction occurred by conversion of the pyridines into pyridinium ions and then into pyridinium ylides. The substituent effects on each step were compensatory. The calculated rate constant ratios agreed with the observed data. The experimental process involved the reaction of Pyridine-3-sulfonic acid(cas: 636-73-7).Recommanded Product: 636-73-7
The Article related to pyridine hydrogen exchange reaction, substituent effect pyridine exchange, ylide formation pyridine reactivity, Physical Organic Chemistry: Structure Effects and other aspects.Recommanded Product: 636-73-7