The method works particularly well with electron-rich arenes (e.g., anisole, mesitylene). For example, PS converts anisole to Lawesson's reagent, [(CHOCH)PS]. It is prepared commercially from 4-methoxypropiophenone, which is prepared from anisole. Other methoxy ethers include anisole and vanillin. For instance, the ground state geometries of anisole (methoxybenzene) and (trifluoromethoxy)benzene differ dramatically. These steps are outlined below for the case of anisole. Such reactions proceed well with electron-rich arenes such as anisole. Both anisole and pentamethylbenzene have been reported as intermediates in the process. For example, synthetic anethole is prepared from anisole. Some of the common solvents include&colon; nitrogen, toluene, acetone, and anisole. Deblocking with aluminium chloride and anisole gives moxalactam 14. A wide variety of phenols undergo O-methylation to give anisole derivatives. For example, at higher temperatures, dimethyl carbonate undesirably methylates phenol to give anisole. Anisole is a precursor to perfumes, insect pheromones, and pharmaceuticals. Methyl phenyl ether is anisole, because it was originally found in aniseed.