Process for producing pentachloronitrobenzene from hexachloroben

Details Process for producing pentachloronitrobenzene from hexachloroben Process for producing pentachloronitrobenzene from hexachloroben

1983-01-28

1984-07-24

Sebastian, Leland A.

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

Organic compounds

Oxygen containing

568 67, C07C 7912

Patent

active

044619189

ABSTRACT:
Disclosed is a process for producing pentachloronitrobenzene (PCNB) by reacting hexachlorobenzene (HEX) with sodium hydrosulfide (NaSH) in the presence of sodium hydroxide (NaOH), sodium carbonate (Na.sub.2 CO.sub.3), or mixtures thereof to produce the sodium salt of pentachlorothiophenol (PCTP), followed by reacting it (or PCTP itself after acidifying) with nitric acid in the presence of sulfuric acid or oleum.

REFERENCES:
patent: 3984487 (1976-10-01), Watts et al.
patent: 4057590 (1977-11-01), Gay
patent: 4138438 (1979-02-01), Gay

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