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Acta Chimica Sinica ›› 1957, Vol. 23 ›› Issue (6): 501-502. Previous Articles
周锡瑞
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CHOU SI-SHUI
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4,4'-Diaminodiphenyleulfidetetraacetic acid can be obtained by heating 4,4'-diaminodiphenylsulfide with chloroacetic acid in water solution at 95-99℃ for 4 hours,keeping the pH at 7-8 all the time with addition of alkali,followed by cooling the reaction mixture to 00C and neutralizing with hydrochloric acid.The yield is 79.5% based on 4,4'-diaminodiphenylsulfide.
CHOU SI-SHUI. THE SYNTHESIS OF 4, 4’-DIAMINODIPHENYLSULFIDETETRAACETIC ACID[J]. Acta Chimica Sinica, 1957, 23(6): 501-502.
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