358. The cumulative effect of substituents on the reaction of NN-dimethylanilines with allyl bromide
作者:H. P. Crocker、Brynmor Jones
DOI:10.1039/jr9590001808
日期:——
Synthesis of 1,5-bifunctional organolithium reagents by a double directed ortho-metalation: Direct transformation of esters into 1,8-dimethoxy-acridinium salts
作者:Christian Fischer、Christof Sparr
DOI:10.1016/j.tet.2018.04.060
日期:2018.9
electrophilic aromaticsubstitution amounts to several limitations in accessing specific substitution patterns. Nucleophiles generated by directed metalation represent an effective alternative for the preparation of various distinctly substituted arenes and heterocyclic scaffolds to overcome these restraints. Herein, we report the direct synthesis of specifically substituted heterocyclic fluorophores from esters