Zeolite-Based Catalysts: A Valuable Approach toward Ester Bond Formation

Synthesis of novel perfluoroalkylglucosides on zeolite and non-zeolite catalysts.

Perfluoroalkylglucosides comprise a very important class of fluorine-containing surfactants. These compounds can be synthesized by using the Fisher reaction, starting directly from glucose and the required perfluoroalcohols. We wish to report on the use of zeolite catalysts of different structure and composition for the synthesis of perfluoroalkylglucosides when using glucose and 1-octafluorope...

Design of hierarchical zeolite catalysts by desilication

Building Bridges: Biocatalytic C–C-Bond Formation toward Multifunctional Products

Carbon-carbon bond formation is the key reaction for organic synthesis to construct the carbon framework of organic molecules. The review gives a selection of biocatalytic C-C-bond-forming reactions which have been investigated during the last 5 years and which have already been proven to be applicable for organic synthesis. In most cases, the reactions lead to products functionalized at the si...

A free-standing condensation enzyme catalyzing ester bond formation in C-1027 biosynthesis.

Nonribosomal peptide synthetases (NRPSs) catalyze the biosynthesis of many biologically active peptides and typically are modular, with each extension module minimally consisting of a condensation, an adenylation, and a peptidyl carrier protein domain responsible for incorporation of an amino acid into the growing peptide chain. C-1027 is a chromoprotein antitumor antibiotic whose enediyne chro...

A Bond graph based approach to Case

The paper presents an algorithm for case-based synthesis of single-input single-output power-drive systems based on dynamic behavior design speciications. The case-base consists of electro-mechanical components modelled using the bond-graph formalism. An hierarchical classiication scheme for devices that distinguishes between the functional and structural aspects of a device is described. The s...