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79539-35-8

4-AMINO-3 6-DISULFO-1 8-NAPHTHALIC synthesis

1synthesis methods
-

Yield:-

Steps:

Multi-step reaction with 2 steps
1: fuming H2SO4 / 3 h / 90 °C
2: 1.) aq. KOH, 2.) aq. HCl / 1) pH 12.5, 50 deg C, 10 min; 2) pH 2.0, 50 deg C, 10 min; 3) pH 2, 3 d, room temperature

References:

Stewart, Walter W. [Journal of the American Chemical Society,1981,vol. 103,# 25,p. 7615 - 7620]

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