General Description
A liquid.
Reactivity Profile
ANILINE, 2,4,6-TRIMETHYL-neutralizes acids in exothermic reactions to form salts plus water. May be incompatible with isocyanates, halogenated organics, peroxides, phenols (acidic), epoxides, anhydrides, and acid halides. Flammable gaseous hydrogen may be generated in combination with strong reducing agents, such as hydrides.
Health Hazard
This material is moderately toxic orally. It is also considered highly toxic by unspecified routes. It is a skin and eye irritant. Suspect occupational carcinogen. (Non-Specific--Aromatic Amines) The danger of acute poisoning is represented by methemoglobinemia leading to adverse effects on the red cells. A number of the amines may act as skin sensitizers.
Potential Exposure
Used on small scale in organic
synthesis.
Fire Hazard
When heated to decomposition, ANILINE, 2,4,6-TRIMETHYL-emits toxic fumes of nitrogen oxides. Avoid decomposing heat.
First aid
If this chemical gets into the eyes, remove any
contact lenses at once and irrigate immediately for at least
15 minutes, occasionally lifting upper and lower lids. Seek
medical attention immediately. If this chemical contacts the
skin, remove contaminated clothing and wash immediately
with soap and water. Seek medical attention immediately.
If this chemical has been inhaled, remove from exposure,
begin rescue breathing (using universal precautions, including
resuscitation mask) if breathing has stopped and CPR if
heart action has stopped. Transfer promptly to a medical
facility. When this chemical has been swallowed, get medical
attention. Give large quantities of water and induce
vomiting. Do not make an unconscious person vomit.
Shipping
UN2810 Toxic liquids, organic, n.o.s., Hazard
Class: 6.1; Labels: 6.1-Poisonous materials, Technical
Name Required.
Chemical Properties
Aniline, 2,4,6-Trimethyl-is a clear liquid.
Chemical Properties
clear yellow to brown liquid
Uses
2,4,6-Trimethylaniline is useful for the preparation of Grubbs' catalyst. It is used as a precursor to dyes. It undergoes condensation reaction with glyoxal to prepare glyoxal-bis(mesitylimine). It is also involved in the preparation of 1,3-diketimines ligands by condensation with 1,3-diketones. Further, it is used for the production of Acid Blue 129 dye, which is useful in histochemistry studies. In addition to this, it serves as a building block to various bulky ligands.
Definition
ChEBI: 2,4,6-Trimethylaniline is a substituted aniline.
Preparation
2,4,6-Trimethylaniline is prepared by selective mononitration of mesitylene, avoiding oxidation of the methyl groups.
Mix sulfuric acid and nitric acid into mixed acid, nitrify with mesitylene at atmospheric pressure below 10°C for 4 hours, stand for stratification, and let off the waste acid. The obtained 2,4,6-trimethylnitrobenzene, iron powder, hydrochloric acid and water were prepared in a ratio of 1:3.74:0.9:2.22 (mol ratio) for reduction reaction at 100-105°C for 8h. Crude 2,4,6-Trimethylaniline was then distilled off from the reduced material and purified by distillation.
