pmethoxybenzophenone

4-Methoxybenzophenone is an organic compound with the chemical formula C14H12O2. It is a substituted benzophenone, meaning it has a benzophenone core structure with a methoxy group attached. Specifically, the methoxy group (OCH3) is located at the para position (the fourth position) on one of the phenyl rings. This compound typically appears as a white to off-white crystalline solid.

4-Methoxybenzophenone is used in various applications, primarily related to its photochemical properties. It can act as a photoinitiator in UV-curing processes, where it absorbs ultraviolet light and initiates polymerization reactions. This makes it useful in inks, coatings, and adhesives. It can also function as a UV absorber, protecting materials from degradation caused by UV radiation. In some cosmetic formulations, it has been used as a UV filter.

The synthesis of 4-methoxybenzophenone can be achieved through several methods, often involving Friedel-Crafts acylation reactions. For example, anisole can be reacted with benzoyl chloride in the presence of a Lewis acid catalyst. It is a relatively stable compound under normal storage conditions.