close

Вход

Забыли?

вход по аккаунту

?

код для вставки
2005
Oxidation
O 0212
20- 039
Oxidative Transformation of 1,3-Dioxacycloalkanes Induced by Chlorine Dioxide.
— Oxidation of dioxacycloalkanes with chlorine dioxide gives rise to the formation of
the corresponding glycol monoesters. The oxidation of nonsymmetrical dioxacycloalkanes like (IV) and (VII) yields a mixture of two isomeric esters. Reaction of chlorine
dioxide with cyclic acetals bearing a phenyl substituent in position 2 affords, in addition
to monoesters, benzaldehyde and/or benzoic acid. Carrying out the reaction in the presence of an imidazolinoxyl oxide derivative increases the product yield by the action of
the oxoammonium salt resulting from the reaction of the iminoxyl radical with chlorine
dioxide. Furthermore, the kinetic regularities, the effects of the nature of solvent and
the temperature on the reaction rate are considered and the activation parameters are
determined. — (ABDRAKHMANOVA*, A. R.; KABAL'NOVA, N. N.; ROL'NIK, L.
Z.; YAGAFAROVA, G. G.; SHERESHOVETS, V. V.; Russ. Chem. Bull. 53 (2004) 8,
1755-1760; Inst. Org. Chem., Ufa Res. Cent., Russ. Acad. Sci., Ufa 450054, Russia;
Eng.) — H. Hoennerscheid
Документ
Категория
Без категории
Просмотров
0
Размер файла
23 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа