Continuous process for the dinitration of aromatic substrates

Details Continuous process for the dinitration of aromatic substrates Continuous process for the dinitration of aromatic substrates

1997-11-19

1999-05-25

Burn, Brian M.

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

Organic compounds

Amino nitrogen containing

C07C20976

Patent

active

059070625

ABSTRACT:
A continuous process for the dinitration of alkyl-substituted derivatives of phenol and aniline, using nitric acid substantially free of sulphuric acid, characterized in which the dinitration is conducted in a single step in a tubular reactor in the presence of a catalytically-effective amount of a catalyst capable of reacting with the nitric acid to form nitrous acid in situ.

REFERENCES:
patent: 2951746 (1960-09-01), Kouba et al.
patent: 3694513 (1972-09-01), Tobey et al.
patent: 3726923 (1973-04-01), Foster et al.
patent: 4621157 (1986-11-01), McDaniel et al.
patent: 4874895 (1989-10-01), Donadello

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