close

Вход

Забыли?

вход по аккаунту

?

код для вставки
2005
Oxetane derivatives
R 0035
Studies on Pd(II)-Catalyzed Synthesis of (Z)-α-Haloalkylidene-β-lactones from
of 2-Alkynols and the Subsequent Coupling Reactions. —
34- 140 Cyclocarbonylation
Pd-catalyzed cyclocarbonylation of alkynols allows the formation of a wide range of
(Z)-alkylidene-β-lactones. This reaction proceeds with high regio-, stereo-, and
chemoselectivity. Only trace amounts of by-products such as (IV) and (V) are observed.
The yields of (Z)-bromoalkylidene-β-lactones (VI) are low, but they are important
building blocks which smoothly undergo coupling reactions. — (MA*, S.; WU, B.;
JIANG, X.; ZHAO, S.; J. Org. Chem. 70 (2005) 7, 2568-2575; State Key Lab.
Organomet. Chem., Shanghai Inst. Org. Chem., Chin. Acad. Sci., Shanghai 200032,
Peop. Rep. China; Eng.) — Jannicke
2005
Документ
Категория
Без категории
Просмотров
0
Размер файла
45 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа