Sulfonation and chlorosulfonation of 2,3-dichloro-1,4-naphthoquinone

doi:10.1007/BF00948057

Paper

Sulfonation and chlorosulfonation of 2,3-dichloro-1,4-naphthoquinone

Published Apr 1, 1985 · R. P. Shishkina, V. Mamatyuk, E. P. Fokin

Bulletin of the Academy of Sciences of the USSR, Division of chemical science

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Abstract

Conclusions1.Sulfonation and chlorosulfonation of 2,3-dichloro-1,4-naphthoquinone in the 6 position of the naphthoquinone has been effected by heating with oleum or with chlorosulfonic acid.2.The corresponding 6-sulfonamide derivatives of 2,3-dichloro-1,4-naphthoquinone have been obtained by the action of ammonium carbonate or morpholine on the 6-sulfonyl chloride under mild conditions.

Study Snapshot

Heating with oleum or chlorosulfonic acid can produce 6-sulfonamide derivatives of 2,3-dichloro-1,4-naphthoquinone, which can be further processed into pharmaceuticals.

PopulationOlder adults (50-71 years)

Sample size24

MethodsObservational

OutcomesBody Mass Index projections

ResultsSocial networks mitigate obesity in older groups.

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Paper

Sulfonation and chlorosulfonation of 2,3-dichloro-1,4-naphthoquinone

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References

Oxidative demethylation of 2,3-dicyano-1,4-dimethoxynaphthalene and nitrations of some 1,4-naphthoquinones and phthalic anhydride by nitronium salts

Nitronium salts can oxidatively demethylate methyl naphthyl ethers, leading to N-methylacetamide and 2,3-dicyano-1,4-dimethoxynaphthalene.

Studies on the Utilization of 1, 4-Naphthoquinone. IV

1, 4-naphthoquinone compounds show excellent dyeing efficiency and fastness in textiles, with Amylan showing the best results and Terylen showing the same dyeing efficiency as acetate at 100°C without carrier.

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