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
Structural systematics and conformational analyses of an isomer grid of nine tolyl-N-pyridinylcarbamates
作者:Pavle Mocilac、John F. Gallagher
DOI:10.1007/s11224-016-0851-5
日期:2017.6
$$R_2}^2}$$R22 (8) and augmented by flanking C–H…O contacts. The CpoM crystal structure crystallises with 0.25 CHCl3 per carbamate molecule and solvent channels aligning along the a-axis direction. Conformationalanalyses of the nine minimised CxxM structures in gas phase are detailed for comparisons with the solid-state structures and demonstrate similarities between both structural methods. The modelling results