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COMMUNICATION
Journal Name
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015,
more expensive or more toxic, or which simply have to be
manufactured, causing additional costs and waste.
DOI: 10.1039/C5RA20133K.
DOI: 10.1039/C5GC02966J
1
1
8 The resulting compound of the oxidation of gallic acid in
alkaline solutions is the highly coloured galloflavin. See: (a) R.
Bohn and C. Graebe, Chemische Berichte, 1887, 20, 2327-
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4
9 Reactions under pure O led to similar yields. We chose open
2
flask reactions because they are much more sustainable and
affordable.
Acknowledgments
This work was supported by the European Commission
331; (b) J. Grimshaw and R. D. Howarth, J. Chem. Soc., 1956,
18-422.
(IMBRAIN project, FP7-REGPOT-2012-CT2012-31637-IMBRAIN)
and the Spanish MINECO (CTQ2014-56362-C2-1-P), cofinanced
by the European Regional Development Fund (ERDF). The 20 (a) H. Yao and D. E. Richardson, J. Am. Chem. Soc., 2000, 122
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