A constituent part of a molecule to be synthesized which is regarded as the basis of a synthetic procedure.
 Example sentencesExamples
-  In the processes according to this aspect of the invention, any of the monomer synthons according to the invention is used in place of the conventional beta-cyanoethyl phosphoramidite.
 -  Thus, sulfur compounds derived from Halothane were found to be useful new synthons for organofluorine compounds.
 -  These chains interact via C-Br X synthons to form the three-dimensional structure.
 -  Another group discussed comprises carbanionic synthons in which the carbon atom carries a singly bonded heteratom.