Full professor of Organic Chemistry from 1990 to 2016. The fields of interest cultivated from 1972 to the present day have concerned topics of chemistry of heterocyclic compounds and of organic physical chemistry. Subsequently, he was interested in the stereocontrolled synthesis of functionalised heterocyclic rings constituting fragments of molecules with high biological activity and the study of the complexing capacities of cyclodextrins. Recently he has turned his attention to the use of enzymes in synthesis and to the possibility of conducting reactions in unconventional alternative media such as ionic liquids and gel phases, as well as to the functionalization and use of materials such as allosyte as a drug carrier and/or delivery. He is the author of more than 200 publications and five reviews all about Organic Chemistry. In 2012 he received the Award of the Division of Organic Chemistry of the SCI for the Area "Organic Chemistry in its mechanistic and theoretical aspects. In 2018 he was appointed Professor Emeritus of the University of Palermo.