Diarylmethanols are very important compounds in the synthesis of drugs, flavors, chemicals, and materials which used in the agricultural industry. Secondary alcohols also play the role of intermediary compounds in organic reactions1. In the organic syntheses, there are numerous ways for the preparation of secondary alcohols that among them, reduction of ketones or addition of organic-metallic reagents to carbonyl-containing compounds are the most important reactions of C-C bond formation2. The use of boron reagents as a source of aryl through the exchange of the aryl groups between boron reagents and metal is one of the most commonly used methods for the arylation of aldehydes3. In this research, we have investigated the addition of phenylboronic acid to aldehydes in the presence of an available, active, and selective homogeneous catalytic system with copper salts and phosphorus ligands (Scheme 1). The structure of the prepared products was characterized by melting point and spectral analysis techniques as IR, 1HNMR, 13CNMR.
