SCHEDULED MAINTENANCE
The ideas of Hellmann and Opitz concerning optimum conditions for aminomethylation reactions are applied to the synthesis of alizarin fluorine blue. The yield is increased from 13 to 61 per cent. by using an aqueous ethanolic solvent of minimum alkalinity.
K. Al-Ani and M. A. Leonard, Analyst, 1970, 95, 1039 DOI: 10.1039/AN9709501039
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