Abstract
In vitro synthesis of polyphenols using isolated enzymes as catalyst via non-biosynthetic pathways is reviewed. Various phenols have been subjected to an oxidative polymerization catalyzed by peroxidase, laccase, or bilirubin oxidase under mild reaction conditions. In most cases, polyphenols with a mixed structure of phenylene and oxyphenylene units have been formed. By utilizing specific enzymatic catalysis, regio- and chemoselective polymerizations have occurred, yielding functional and useful polymers, which are often difficult to synthesize by conventional methodologies. Enzymatic curing of urushiol analogues produces crosslinked polymeric films (“artificial urushi”) with high hardness and good elasticity.
Keywords: Polyphenols, polymerizations, chemoselective
Call for Papers in Thematic Issues
Catalytic C-H bond activation as a tool for functionalization of heterocycles
The major topic is the functionalization of heterocycles through catalyzed C-H bond activation. The strategies based on C-H activation not only provide straightforward formation of C-C or C-X bonds but, more importantly, allow for the avoidance of pre-functionalization of one or two of the cross-coupling partners. The beneficial impact of ...read more
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