**2.2 Synthesis of 4,5-dimethyl-2-phenyl-1-(p-tolyl)-1***H***-imidazole (C18H18N2): DMPPTI**

Over about an hour, at a constant temperature of 333 K, 15 mmol of pure butane-2,3-dione, 15 mmol of p-toluidine, 15 mmol of ammonium acetate, and 15 mmol of benzaldehyde were added to 10 ml of ethanol. The actions that follow are completed

*Selected Imidazole Derivatives: Synthesis and X-Ray Crystal Structure – A Review DOI: http://dx.doi.org/10.5772/intechopen.108488*

**Figure 1.** *Schematic diagram for the synthesis of 2.1–2.8.*

in the manner outlined in DMDPIMH. The yield was 1.93 g or 46% (**Figure 1**). An appropriate single crystal was used to acquire the X-ray diffraction data [11].
