Fig. 5From: Structural effects on kinetics and a mechanistic investigation of the reaction between DMAD and N–H heterocyclic compound in the presence of triphenylarsine: spectrophotometry approachPlot of absorbance versus time at 305 nm for the reaction between (1) (10−2 M), (2) (5 × 10−3 M) and N–H (5 × 10−3 M) in methanol. The dotted curve shows experimental values, and the solid line is the fitted curve Back to article page