By R. A. Sheldon, Isabella Arends, Ulf Hanefeld
''Written by way of Roger A. Sheldon and his co-workers, this primary e-book to target catalytic approaches from the perspective of eco-friendly chemistry offers each vital point: quite a few catalytic savings and oxidation tools; solid-acid and solid-base catalysis; C-C bond formation reactions; biocatalysis; uneven catalysis; novel response media like e.g. ionic beverages, supercritical Co[subscript 2]; and renewable raw materials.''--BOOK JACKET. Read more...
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Extra info for Green chemistry and catalysis
Why then is it important whether the enzyme is immobilized and what are the advantages of immobilizing an enzyme? 1). However, homogeneous catalysts also have drawbacks: in particular it is difﬁcult to separate them from the reaction mixture [1–3]. In addition recycling is problematic and continuous processes are not possible. By immobilizing enzymes several of the advantages of heterogeneous catalysts can be added to the list of advantages of using an enzyme. For enzymes another point can be important.
12) [32, 43]. A related ﬂuorogenic substrate for ceramidase was also recently reported by others . The phenacetyl derivative 43 also serves a ﬂuorogenic substrate for amidases . This substrate is however completely unstable towards alkaline conditions, probably due to hydrolysis by an assisted mechanism with an intramolecular acyl shift to the hydrated diol as discussed above for the corresponding lipase substrate. A chromogenic threonine derivative to form a selective HIV-protease substrate 44 has also been prepared .
P. L. (2004) Enzyme activity ﬁngerprinting with substrate cocktails. Journal of the American Chemical Society, 126, 11116–11117. 1 Introduction The application of enzymes as catalysts in organic chemistry is closely linked to their immobilization. Indeed, many enzymes are only available in an immobilized form. The immobilized enzymes can be used as received, greatly easing their application. Numerous of these readily available immobilized enzymes are now the working horses of biocatalysis. This has even led to the incorrect use of the abbreviation of an enzyme name for a speciﬁc enzyme preparation, that is CALB for the immobilized form of Candida antarctica lipase B on cross-linked polymethacrylate (also known as Novozym 435).