About the use of molecular workbenches and platforms in organic synthesis

Abstract

The concept of molecular workbenches is introduced. These workbenches are rigid templates onto which the substrate is fixed covalently and is thus arranged in a conformationally defined way. The workbench may be disconnectible (i.e. after the functionalization of the substrate it is removed by bond cleavage) or non-disconnectible. In this case the workbench is irreversibly incorporated into the target structure. This concept is illustrated by additions to (E) olefins (disconnectible workbench) and a synthesis of dihydrocodeinone (non-disconnectible workbench).