This focused collection of papers is devoted to recent developments in ‘green chemistry’, especially the applications of catalytic methods, involving both chemoand biocatalysis. The development of catalytic processes is an important current theme in organic chemistry, since it aims to reduce the environmental impact of the industrial synthesis of chemicals and polymers by replacing stoichiometr...

It has recently become possible to exploit the diversity and specificity of the humeral immune system to create immunoglobulins capable of catalysis. Generation and characterization of catalytic antibodies for three concerted chemical reactions in which carbon-carbon bonds are made or broken are briefly reviewed. The production of monoclonal antibodies with tailored catalytic properties is a pr...

Our understanding of the relationship between the structure of RNA and its catalytic activity has advanced significantly in the past year. These advances include time-resolved crystallographic studies on the hammerhead ribozyme, as well as new structures of a group I intron, a lead(II)-cleavage ribozyme, a hepatitis delta virus ribozyme, and components of the spliceosome machinery and the pepti...

The Special Issue “Zeolite Catalysis” published in the online journal Catalysts was recently successfully completed. A good number of peer-reviewed publications were published reflecting the broadness of the zeolite syntheses, characterizations and various application fields. This issue brought together recent research of well-known research teams from all over the world. The term “zeolite” is ...

an efficient method has been developed for the catalysis of condensation of 1,2-phenylenediamines and 2-aminothiophenoles with different aldehydes into their corresponding 2-aryl-1h-benzimidazoles and 2-aryl-1h-benzothiazoles under mild condition. in this method, trans-3,5-dihydroperoxy-3,5-dimethyl-1,2-dioxolane (dhpdmdo)/hoac/ki system was used as a novel and effective oxidant in water at roo...

The enantioselective oxidative C-H functionalization of tetrahydroisoquinoline derivatives is achieved through the merger of photoredox and asymmetric anion-binding catalysis. This combination of two distinct catalysis concepts introduces a potentially general approach to asymmetric transformations in oxidative photocatalysis.

The mechanism by which ATP is synthesized during oxidative and photophosphorylation has been elucidated by oxygen exchange and other studies: a novel form of catalysis termed rotary catalysis-is involved.

In the last years huge efforts have been made to develop new activation modes in order to synthesize complex scaffolds in an enantiopure form. The most common approach has been the development of new catalysts to activate an “unreactive” compound A that will react with a highly reactive compound B to render C. However, recently a new approach pushes the boundaries of organic chemistry: synergis...

Salt concentration and pH have dramatic effects on enzymatic catalysis. A quantitative description on these effects is important to elucidate the energetics and mechanisms of catalysis. Here, the effects of salt concentration and pH on binding and catalysis are analyzed with Ribonuclease A (RNase A) as a model system. 11 The effects of pH and mutagenesis on the stability of RNase A-nucleic acid...

Both Catalysis and the V-Model are process models supporting system development based on the notations of the Unified Modeling Language (UML). The subject of this study is the conformance of both methods. More precisely we develop a variant of the original Catalysis process with V-Model conform documents as outputs. In this way we provide the basis of a design environment in which a development...