Precursors for N-Heterocyclic carbenes (NHC) for NHC-stabilized germylenes

Abstract

Classically the catalytic activities for small molecule activation are widely represented by the use of transition metals and their compounds, but due to toxicity, low abundance, and high cost, the steps are moving towards main group elements and their compounds. Germylenes has greater potential to take charge. In this report we have reported, the synthesis of different DAD i.e., DIPP DAD, MES DAD from glyoxal and butan-2,3-dione and further their imidazolium salt, for the purpose of synthesis of their respective carbene that can be used for complexation with GeCl2 to obtain stable germylenes and study their catalytic ability in small molecules activation like CO2 and H2. In addition, with an aid of 1H, 13C NMR spectroscopy, and Mass spectrometry techniques these molecules were characterize.