名称:
Aromatic nucleophilic substitution. 9. Kinetics of the formation and decomposition of anionic .sigma. complexes in the Smiles rearrangements of N-acetyl-.beta.-aminoethyl 2-X-4-nitro-1-phenyl or N-acetyl-.beta.-aminoethyl 5-nitro-2-pyridyl ethers in aqueous dimethyl sulfoxide