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M-Nitrochlorobenzene

An iron condenser should not be used in the steam distillation of the crude m-nitrochlorobenzene, as some reduction takes place and the yield is lowered by 10 to 15 per cent. The product is also deeply colored. [Pg.81]

The chlorine stream is interrupted, and the reaction mixture is allowed to stand for a short time, then it is poured into a separatory funnel and washed thoroughly with hydrochloric acid, soda solution, and water. If part of the mixture has not already precipitated as a white crystalline solid, the mixture is transferred to a beaker until part of it solidifies, then it is filtered, cooled to about 10°, and centrifuged. About 95 grams of practically pure m-nitrochlorobenzene is obtained. The filtrate and the liquid from the centrifuge are combined and subjected to hractional distillation in vacuo. For this purpose, a column should be used which is about 80 cm. in length and provided with a partial condenser. Approximately the following fractions are collected ... [Pg.326]

Obtained from m-chloroaniline by the procedure given for dimethylaniline, page 133. m-Chloroaniline is prepared from m-nitrochlorobenzene, page 116, exacUy as aniline is prepared from nitrobenzene, page 75. m-Chloroaniline is very poisonous. [Pg.327]

SYNS CHLORO-m-NITROBENZENE m-CHLORONITROBENZENE m-CHLORONITRO-BENZENE pOT) m-NITROCHLOROBENZENE m-NITROCHLOROBENZENE, soUd pOT)... [Pg.339]

NITROCELLULOSE with water not <25% water, by-weight (UN 2555) pOT) see CCU250 4-NITROCHINOLIN N-OXID (SWEDISH) see NJFOOO p-NITROCHLOORBENZEEN pUTCH) see NFS525 NITROCHLOR see DFT800 NITROCHLOROBENZENE see CJA950 m-NITROCHLOROBENZENE see CJB250... [Pg.1805]

Sandmeyer in 1884 found that replacement of the diazonium group by halogen was catalyzed by cuprous chloride or bromide. It is a good route to o- and p-chlorotoluenes and m-nitrochlorobenzene. Gattermann in 1890 used copper powder to permit milder conditions. Methods were available for synthesis of benzidine and its congeners, a variety of aminoanthraquinones and acyl derivatives of aryl amines. [Pg.32]

Operating regimes in the production of m-chloroaniline by liquid-liquid reduction of m-nitrochlorobenzene with disodium sulfide... [Pg.475]

A batch of m-chloroanaline (MCA) is to be produced by reducing m-nitrochlorobenzene (MNCB) with an aqueous solution of sodium disulfide (Na2S2) in a fully baffled mechani-... [Pg.475]

Hydrogenation of m-nitrochlorobenzene Sulfided Pt/C Chloramphenicol MASR or JLSR... [Pg.552]

In the manufacture of -nitrochlorobenzene, a mixture of o-nitrochlorobenzene and m-nitrochlorobenzene is obtained as a by-product. One possible way of using this mixture is by subjecting it to methanolysis followed by reduction ... [Pg.799]

By this process, the o-isomer is converted to o-ansidine (ANS), and m-nitrochlorobenzene gives m-chloroaniline (MCA). The mixture of ANS and MCA thus obtained can be separated by dissociation-extraction. [Pg.800]

See other pages where M-Nitrochlorobenzene is mentioned: [Pg.679]    [Pg.289]    [Pg.60]    [Pg.79]    [Pg.81]    [Pg.96]    [Pg.97]    [Pg.240]    [Pg.219]    [Pg.112]    [Pg.83]    [Pg.213]    [Pg.679]    [Pg.144]    [Pg.1386]    [Pg.329]    [Pg.360]    [Pg.167]    [Pg.186]    [Pg.1386]    [Pg.776]    [Pg.228]    [Pg.666]    [Pg.228]    [Pg.313]    [Pg.772]    [Pg.867]    [Pg.530]    [Pg.108]    [Pg.7]    [Pg.512]    [Pg.527]   
See also in sourсe #XX -- [ Pg.22 , Pg.32 ]

See also in sourсe #XX -- [ Pg.14 , Pg.66 ]



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