Метил гексаноа

Описание

Methyl hexanoate has an ether-like odor reminiscent of pineapple. May be prepared by reacting methyl alcohol with hexanoic acid at 130 - 140°C in the presence of concentrated H2S04 and distilling the ester from the reaction mixture.

Химические свойства

Methyl hexanoate has an ether-like odor reminiscent of pineapple

Вхождение

Reported found in pineapple, apple, apricot, orange juice, black currants, guava, grapes, melon, papaya, pineapple, raspberry, blackberry, strawberry, potato, tomato, pepper, rye bread, cheeses, butter, milk, beef mutton, hop oil, beer, grape wine, cider, coffee, tea, honey, cloudberry, durian (Durio zibethinus), olive, passion fruit, plumcot, mushroom, starfruit, mango, wood apple, licorice, soursop, cashew apple, wort, cherimoya, kiwifruit, babaco fruit (Carica pentagona Heilborn), Bourbon vanilla, mountain papaya, oyster, custard apple, nectarine, naranjilla, lamb’s lettuce, loganberry, cape gooseberry, spineless monkey orange, Chinese quince and pawpaw.

Использование

Intermediate for caproic acid detergents, emulsifiers, wetting agents, stabilizers, resins, lubricants, plasticizers, flavoring.

Подготовка

By reacting methyl alcohol with hexanoic acid at 130 to 140°C in the presence of concentrated H2SO4 and distilling the ester from the reaction mixture

Определение

ChEBI: A fatty acid methyl ester derived from hexanoic (caproic acid).

Общее описание

Clear colorless liquid.

Реакции воздуха и воды

Insoluble in water.

Профиль реактивности

Methyl hexanoate is an ester. Esters react with acids to liberate heat along with alcohols and acids. Strong oxidizing acids may cause a vigorous reaction that is sufficiently exothermic to ignite the reaction products. Heat is also generated by the interaction of esters with caustic solutions. Flammable hydrogen is generated by mixing esters with alkali metals and hydrides. Methyl hexanoate reacts with strong oxidizing agents and strong bases.

Пожароопасность

Methyl hexanoate is combustible.

Синтез

Methyl caproate is synthesized by direct esterification of n-Caproic (n-Hexanoic) acid with Methanol, preferably under azeotropic conditions.

Методы очистки

Pass it through alumina and distil it before use. [Beilstein 2 IV 921.]