Following creation of the iControl protocol, the reaction was executed and monitored using online-HPLC and by plotting the peak areas of 4-fluorobenzaldehyde and (4fluorobenzylidene)hydrazine over time (Fig. ). The addition of the hydrazine hydrate was delayed to determine the prereaction composition of the benzaldehyde solution. A significant (4-fluorobenzylidene)hydrazine formation is presented at the first sampling point after the addition of