Aminoketone enolisation: influence of increasing chain length on intramolecular catalysis
作者:Brain G. Cox、Paolo De Maria、Lorenza Guerzoni
DOI:10.1039/p29880000163
日期:——
measured by their rates of halogenation. For both series of aminoketones two important factors are responsible for a high reactivity relative to acetophenone: the positive charge on the protonated (and N-methylated) derivatives, which has a strong influence in the α-(n= 1) and β-(n= 2) position, and intramolecular general base catalysis by the neutral amino group, which has a maximum effect for the δ-(n=