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Many scientists have done many researches about bisoxazolines. As a result of the
strong affinity of the oxazolines nitrogen for various metals, bis oxazolines readily form
complexes which can be used as catalysts in asymmetric synthesis. Chiral bisoxazoline
ligands have been successfully used in asymmetric catalysis of a variety of reactions for
the past decade.
So far nobody has tried out making a bisoxazoline catalyst out of Si. In the periodic
table both Si & C belong to the same group (group IV) & we thought just like Carbon
based (bis oxazoline- transition metal) complex, Silicon based bis oxazolines,
complexed with a transition metal compound would make similar catalysts.
We made two types of Silicon based bis oxazoline- transition metal catalysts starting
from isopropyl & iso butyl oxazolines. Making the Iso butyl bis oxazoline- Cu (I)
complex is far more successful than making the Cu (I) complex with Iso propyl
bisoxazolines. We analysed the reaction by altering the reaction path, changing the
solvent & purifying the starting materials, in order to make proper Iso propyl bis
oxazoline- Cu (I) complex. We Characterized the catalysts made using Nmr (300Hz) &
IR techniques. The attempts to make bis oxazoline- Ni (II) complex failed.
