close

Вход

Забыли?

вход по аккаунту

?

код для вставки
2005
Organo-selenium compounds
S 0130
Conjugated Additions of Selenium Containing Enolates to Enones — Enantioselective Synthesis of δ-Oxo-α-Seleno Esters and Their Facile Transformations.
22- 183 —
Selenoenolate (I) containing a chiral auxiliary linked to the selenium atom can be
efficiently employed as Michael donor for the stereoselective preparation of enantiomerically pure δ-oxo-α-seleno esters. The 1,4-addition products are obtained with a
high level of diastereoselectivity and facial selectivity. Moreover, the organoselenium
moieties in reaction products are stereospecifically substituted affording tetrahydrofurans (X) or α-hydroxy esters like (XI). — (TIECCO*, M.; TESTAFERRI, L.;
MARINI, F.; STERNATIVO, S.; SANTI, C.; BAGNOLI, L.; TEMPERINI, A.; Eur.
J. Org. Chem. 2005, 3, 543-551; Dip. Chim. Tecnol. Farm., Univ. Perugia, I-06123
Perugia, Italy; Eng.) — Bartels
Документ
Категория
Без категории
Просмотров
0
Размер файла
29 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа