4-Hexanolide

Описание

gamma-Hexalactone has a warm, powerful, herbaceous, sweet odor and a sweet, coumarin-caramel taste. May be prepared by reduction of sorbic acid using Zn, Sn, or SnCl2 and concentrated HCL in acetic acid solution at 85°C; from ethylene oxide and sodio-malonic ester; also from propyl alcohol and methylacrylate in the presence of di-tert-butyl peroxide.

Химические свойства

4-Hexanolide is colorless liquid. Very slightly soluble in water, soluble in alcohol, Propylene glycol and oils.

Вхождение

Reported found in apple juice, apricot, orange juice, guava, raisin, papaya, peach, pineapple, berries, asparagus, peas, potato, tomato, breads, cheeses, butter, milk, chicken fat, cooked beef, cooked pork, beer, cognac, grape wines, cocoa, tea, filberts, pecans, passion fruit, Japanese plum, beans, mushroom, starfruit, mango, dried fig, prickly pear, licorice, soursop, Cape gooseberry, nectarines, quince, pawpaw and other sources.

Использование

4-Hexanolide was used as curing agent for diglycidyl ether of bisphenol A with ytterbium triflate as an initiator.

Определение

4-Hexanolide is a gamma-lactone that is oxolan-2-one substituted by an ethyl group at position 5.

Подготовка

By reduction of sorbic acid using Zn, Sn or SnCl2 and concentrated HCl in acetic acid solution at 85°C; from ethylene oxide and sodio-malonic ester; also from propyl alcohol and methylacrylate in the presence of di-tert-butyl peroxide

Общее описание

γ-Hexalactone is a volatile flavoring compound largely present in food and beverage products, fruits, vegetables, etc.