Laccase-catalyzed synthesis of 2,3-ethylenedithio-1,4-quinones
- Georgia Inst. of Technology, Atlanta, GA (United States)
- Georgia Inst. of Technology, Atlanta, GA (United States); Univ. of Tennessee, Knoxville, TN (United States)
Laccases (benzenediol:oxygen oxidoreductase EC 1.10.3.2) are part of a family of multicopper oxidases. These environmentally friendly enzymes require O2 as their only co-substrate and produce H2O as their sole by-product. As a result, they have acquired increasing use in biotechnological applications, particularly in the field of organic synthesis. In the current study, laccases have been employed to successfully couple 1,2-ethanedithiol to various substituted hydroquinones to produce novel 2,3-ethylenedithio-1,4-quinones in good yields via an oxidation–addition–oxidation–addition–oxidation mechanism. The reactions proceeded in one-pot under mild conditions (room temperature, pH 5.0). This study further supports the use of laccases as green tools in organic chemistry. Furthermore, it provides evidence that laccase-catalyzed cross-coupling reactions involving small thiols are possible, in spite of research that suggests small thiols are potent inhibitors of laccases.
- Research Organization:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Biological and Environmental Research (BER)
- Grant/Contract Number:
- AC05-00OR22725
- OSTI ID:
- 1376559
- Journal Information:
- Journal of Molecular Catalysis B: Enzymatic, Vol. 119; ISSN 1381-1177
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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