Benzophenones and their preparation.

摘要

Process for the preparation of methoxy benzophenone derivatives of the formula I: <CHEM> which comprises reacting an anisole derivative of formula II <CHEM> with a compound of the formula III <CHEM> wherein one of X and Y represents a hydrogen atom and the other represents the group COCl, or one represents a magnesium halide group MgHal wherein Hal denotes a halogen atom and the other represents COCl or an aldehyde or nitrile group, followed in the last two cases by oxidation or hydrolysis respectively; the substituents R1, R2 and R3 representing a hydrogen or halogen atom or various organic grouping. Certain of the resulting compounds are novel, and are included as such.