Mieczysław Józef Mąkosza (born 16 November 1934) is a Polish chemist

Chemist

A chemist is a scientist trained in the study of chemistry. Chemists study the composition of matter and its properties such as density and acidity. Chemists carefully describe the properties they study in terms of quantities, with detail on the level of molecules and their component atoms...

 specializing in organic synthesis and investigation of organic mechanisms. Along with Jerzy Winiarski he is credited for the discovery of the aromatic vicarious nucleophilic substitution

Vicarious nucleophilic substitution

Vicarious nucleophilic substitution in organic chemistry is a special type of nucleophilic aromatic substitution in which a nucleophile replaces hydrogen and not an aromatic substituent like a halogen that is ordinarily encountered in this reaction type...

, VNS. He also contributed to the discovery of phase transfer catalysis reactions. From 1979 to 2005 he was director of the Institute of Organic Chemistry of the Polish Academy of Sciences

Polish Academy of Sciences

The Polish Academy of Sciences, headquartered in Warsaw, is one of two Polish institutions having the nature of an academy of sciences.-History:...

.