METHOD OF AROMATIC NITRO-COMPOUNDS' REDUCING CARBONYLATION

摘要

Aromatic nitro-compounds (nitrobenzene, dinitrobenzene, dinitrotoluene) are carbonylated with carbon monooxide, which can contain hydrogen or inert gasses, in the presence of organic hydroxy compounds (aliphatic alcohols C1 to C5), at 80 to 220 degrees C and pressure of 1 to 30 MPa and with catalytic action of metals and compounds of platinum (Pd). Furthermore, at least one halide from the group I.b, II.b, V.a, V.b, VI.b, VII. and iron and/or at least one tertiary amine (pyridine), whereas oxygen (O, O2, O3) and/or peroxide (H2O2, tert-butylhydroperoxide, di-tert-butylperoxide) in a total amount of 0.02 to 6 % by weight (1 to 3 % by weight), calculated on the aromatic nitro-compounds, is added to the reaction environment, altogether or in parts.