close

Вход

Забыли?

вход по аккаунту

?

код для вставки
2005
Polyphenyl derivatives
Q 0700
A Reassessment of the Transition Metal Free Suzuki-Type Coupling Methodology.
It is found that the Suzuki-type coupling can be run successfully without the need
21- 101 —
for addition of a metal catalyst, but palladium contaminations down to a level of 50 ppb
found in commercially available Na2CO3 are responsible for the preparation of biaryls.
Thus, the previously reported non-palladium-mediated pathway is not correct. High
yields of various biaryls can be achieved at a concentration of 1 ppm Pd. —
(ARVELA, R. K.; LEADBEATER*, N. E.; SANGI, M. S.; WILLIAMS, V. A.;
GRANADOS, P.; SINGER, R. D.; J. Org. Chem. 70 (2005) 1, 161-168; Dep. Chem.,
Univ. Conn., Storrs, CT 06269, USA; Eng.) — Jannicke
Документ
Категория
Без категории
Просмотров
0
Размер файла
21 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа