close

Вход

Забыли?

вход по аккаунту

?

код для вставки
2005
Cycloalkylphenyl derivatives
Q 0760
Use of Cyclic Allylic Bromides in the SnCl2/Cu-Mediated Aqueous Carbonyl AlReaction. — Five- and six-membered cyclic allylic halides are found to be
34- 127 lylation
much less reactive than acyclic allylic ones. In this paper, a new powerful method for
aqueous allylation of cyclic allylic ones utilizing SnCl2 as the reducing reagent and Cu
as the catalyst is reported. Both the aliphatic and aromatic aldehydes are efficiently allylated; reaction conditions are mild, simple and safe. The products are obtained with
high yields (75-97%). For aliphatic aldehydes, the diastereoselectivity of the reaction
is modest (55:45 to 81:19). For aromatic aldehydes, the diastereoselectivity is excellent
(99:1). — (TAN, X.-H.; TAO, C.-Z.; HOU, Y.-Q.; LUO, L.; LIU, L.; GUO*, Q.-X.;
Chin. J. Chem. 23 (2005) 3, 237-241; Dep. Chem., Univ. Sci. Technol., Hefei,
Anhui 230026, Peop. Rep. China; Eng.) — Bartels
Документ
Категория
Без категории
Просмотров
0
Размер файла
21 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа