期刊
ADVANCED SYNTHESIS & CATALYSIS
卷 351, 期 4, 页码 589-595出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adsc.200800611
关键词
aqueous medium; 5-deaza-10-oxaflavins; domino reactions; laccase; tetrahydroxanthen-1-ones
资金
- Department of Biotechnology, New Delhi, India
The present investigation provides a simple and convenient route for the synthesis of substituted 5-deaza-10-oxaflavins owing to their importance as probable redox coenzymes. The reaction of alpha,beta-unsaturated derivatives of barbituric acid and di-medone with catechol or 1,4-hydroquinones was catalyzed using laccase in aqueous medium. Quinones, generated in situ by the oxidation of the corresponding catechol or 1,4-hydroquinones., underwent a domino reaction with chalcones to produce 5-deaza-10-oxaflavins and tetrahydroxanthen-1-ones.
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