4-трет-Бутилтолуол химические свойства, назначение, производство
Химические свойства
colourless liquid
Использование
4-tert-Butyltoluene is used as pharmaceutical intermediate, Solvent for resins, intermediate in organic synthesis. It is an intermediate for the production of the acaricide pyridaben.
Подготовка
Synthesis of 4-tert-butyltoluene: Put toluene in the reaction kettle, add catalyst, then add tert-butane chloride, after the reaction, wash with water and layer, and the organic layer is distilled to obtain the product. Alkylation of isobutylene and toluene in the presence of sulfuric acid can also be used to produce 4-tert-butyltoluene.
Общее описание
Clear colorless liquid with an aromatic gasoline-like odor.
Реакции воздуха и воды
Flammable. Insoluble in water.
Профиль реактивности
4-tert-Butyltoluene may react with oxidizing materials.
Опасность
Toxic by inhalation, ingestion, and skin
absorption. Eye and upper respiratory tract irritant.
Угроза здоровью
p-tert-Butyl toluene is an irritant
of the mucous membranes, a central nervous
system depressant and may cause cardiovascular
and hematologic disturbances; chronic
exposure in animals causes lung, brain, liver,
and kidney damage.
Пожароопасность
4-tert-Butyltoluene is combustible.
Профиль безопасности
Moderately toxic by
inhalation and ingestion. A skin and human
eye irritant. Human systemic effects by
inhalation: nausea or vomiting, conjunctiva
irritation, unspecified effects on the sense of
taste. Inhalation of vapors causes irritation
of lungs and depression of central nervous
system. Prolonged exposure may result in
damage to liver and kidneys. Flammable
when exposed to heat or flame.
Incompatible with oxidizing materials.
When heated to decomposition it emits
acrid smoke and fumes.
Канцерогенность
p-tert-Butyl toluene was not mutagenic in
a number of bacterial strains in the Ames assay
with or without metabolic activation.
Методы очистки
A sample containing 5% of the meta-isomer is purified by selective mercuration. Fractional distillation of the solid arylmercuric acetate, after removal from the residual hydrocarbon, gives pure p-tert-butyltoluene [Stock & Brown J Am Chem Soc 81 5615 1959]. [Beilstein 5 H 439, 5 III 1003, 5 IV 1079.]
4-трет-Бутилтолуол препаратная продукция и сырье
сырьё
препарат