Investigation of the cyanosilylation catalysed by metal-siliceous catalysts

Different amorphous mesoporous TUD-1 catalysts were employed in cyanosilylation of acetophenone with trimethylsilylcyanide in dichloromethane at room temperature. Catalysts were monometallic Al-TUD-1, Zr-TUD-1 and bimetallic Na–Al-TUD-1 and Al–Zr-TUD-1's with constant Si/metal ratio but different Al/Zr ratios. Al-TUD-1 proved to be the most...

Chiral dirhodium catalysts immobilised in porous hosts: Synthesis and performance

The main objective of this research is to modify the catalytic properties of homogeneous chiral dirhodium catalysts upon immobilisation on the porous support materials silica, MCM-41 and TUD-1. The catalysts were immobilised via ligand exchange of one chiral ligand with a carboxylate tether group. This influences the enantio- and trans/cis...

On the design of chemical processes with improved controllability characteristics

Traditionally, process design and control system design are carried out sequentially. The premise underlying this sequential approach is that the decisions made in the process design phase do not limit the control design. However, it is generally known that incongruent designs can occur quite easily. In the literature two different classes of...