Nitrosation process

Details Nitrosation process Nitrosation process

1979-05-30

1980-12-30

Doll, John

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

564265, 564267, 564441, C07C13100, C07C 8760

Patent

active

042422779

ABSTRACT:
In the process of subjecting a compound selected from phenols, N,N-dialkylanilines and mixtures thereof to nitrosation reaction conditions using a nitrite in an aqueous system to prepare nitrosated products selected from benzoquinone oximes and p-nitroso-N,N-dialkylanilines, the nitrosation reaction is advantageously carried out in the presence of an acid stronger than nitrous acid an organic acid of pKa 2 to pKa 5 or a salt thereof and water, the quantities of the organic acid and water being up to 5 times by mole and up to 10 times by weight the quantity of the compound to be nitrosated, respectively.

REFERENCES:
Hodgson et al., "J. Chem. Soc.", p. 1808 (1939).
Organic Syntheses, Coll. vol. 1, p. 511.
Justus Liebig's Annalen der Chemie, vol. 277, p. 85.
J. Chem. Soc., p. 1677 (1955).
Organic Syntheses, Coll. vol. 2, p. 223.

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