C6H5OH + OH− → C6H5–O− + H2O C6H5–O− + R–X → C6H5OR The Ullmann condensation is similar to the Williamson method except that the substrate is an aryl halide.
C6H5OH + OH- → C6H5-O- + H2O C6H5-O- + R-X → C6H5OR Kondensasi Ullmann mirip dengan metode Williamson, kecuali substratnya adalah aril halida.