Dehalogenation of polychlorinated biphenyls and other related co

Details Dehalogenation of polychlorinated biphenyls and other related co Dehalogenation of polychlorinated biphenyls and other related co

1984-05-11

1990-03-20

Siegel, Alan

Organic compounds -- part of the class 532-570 series

Organic compounds

Halogen containing

C07C 2508

Patent

active

049103539

ABSTRACT:
Polychlorobiphenyls and other toxic halogenated polyaromatic substances such as various halogenated pesticides, herbicides, and the like, are dehalogenated through the use of a strong base and various sulfur-containing compounds. The dechlorinated residues either form polymers which are insoluble in aliphatic hydrocarbons and can thus be easily separated as through filtration, or can be separated from the solvent by distillation. The residues can be readily and safely disposed of as in an approved dump, or burned.

REFERENCES:
Bunnett et al. (Bunnett), J. Am. Chem. Soc., 90:810-811 (1968).
Nelson et al. (Nelson), J. Org. Chem., 39:1425 (1974).
Feiser & Feiser Reagents for Org. Synth. vol. 2 (1969) p. 158.
Crown Zellerbach Corp. Dimethyl Sulfoxide Tech Bulletin (1988) pp. 5, 7.

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