- Sulfochlorination of 1,2-Naphthoquinone-(2)-diazide by Chlorosulfonic acid
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The sulfochlorination of 1,2-naphthoquinone diazide-(2) (1) by chlorosulfonic acid was investigated.The yields of the formed products (1,2-naphthoquinone diazide-(2)-4-sulfonic acid (4), 1,2-naphthoquinone diazide-(2)-5-sulfonic acid (5), 1,2-naphthoquinone diazide-(2)-4-sulfochloride (2) and 1,2-naphthoquinone diazide-(2)-5-sulfochloride (3)) depend on the temperature and on the time of reaction.The highest yields of the favoured 1,2-naphthoquinone diazide-(2)-4-sulfochloride (2) are obtained at 63 deg C and after a reaction time of 80 minutes (50percent).
- Sauer, E.,Polz, K.,Schopf, G.,Bendig, J.
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p. 467 - 473
(2007/10/02)
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- PHOTOSUBSTITUTION OF HALOGEN BY SULFITE ION IN 1-HYDROXY-4-CHLORONAPHTHALENE
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During the irradiation of 1-hydroxy-4-chloronaphthalene with the light from a mercury lamp at 313 nm in water in the presence of sodium sulfite the chlorine is substituted by a sulfo group.The quantum yield of the photosubtitution reaction depends on the
- Ivanov, V. L.,Eggert, L.
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p. 2075 - 2078
(2007/10/02)
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