close

Вход

Забыли?

вход по аккаунту

?

код для вставки
2005
Carbohydrates
U 0500
Substitution and Remote Protecting Group Influence on the Oxidation/Addition
α-Substituted 1,2-Anhydroglycosides: A Novel Entry into C-Ketosides. — The
33- 235 of
role of C(1) substitution, C(3) protecting group, and nucleophile on the generation of
C-ketosides from α-substituted glycal anhydrides is investigated. Successful coupling
is highly dependent on the size of the C(3) silyl ether and the nucleophile used. Substrates containing smaller silyl ethers than Tps are less reactive, and substrates containing silyl ethers of comparable size (like Tips) give the corresponding ketoside in high
yield and selectivity. — (ROBERTS, S. W.; RAINIER*, J. D.; Org. Lett. 7 (2005) 6,
1141-1144; Dep. Chem., Univ. Utah, Salt Lake City, UT 84112, USA; Eng.) —
R. Steudel
Документ
Категория
Без категории
Просмотров
0
Размер файла
36 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа