作者:Fátima Norberto、Susana Santos、Daniel Silva、Pablo Hervés、Ana Sofia Miguel、Filipe Vilela
DOI:10.1039/b200445n
日期:2002.5.22
New secondary aryl N-pyridylcarbamates were prepared by reaction of the aminopyridine anion with aryl chloroformates and their hydrolysis was studied over the pH range from 12 to 13.7. The pH–rate profile points to an E1cBmechanism, involving pre-equilibrium deprotonation of the nitrogen atom to form an anion that undergoes rate-limiting decomposition into pyridyl isocyanate and a phenoxide ion. Further